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Main Components of an HVAC System

Tue, 19 Sep 2023 21:50:16 GMT

Many homeowners don't give much thought to their HVAC systems as long as the systems are in good working condition. However, when the system stops working, you may want to know what is wrong. Therefore, understanding the various components of an HVAC system is the best way to take good care of your unit. Learn about the main components of an HVAC unit.

Compressor

The primary function of an HVAC compressor is to compress refrigerant gases. Refrigerant gases help with the heat exchange within the HVAC system. The compressor receives low-temperature refrigerant from the evaporator coil. It then increases the temperature and pressure of the gas.

The HVAC compressor takes in low-pressure, low-temperature refrigerant gas from the evaporator coil (indoor unit) of the HVAC system. It then compresses this gas, raising its pressure and temperature significantly.

The compressor enables the heat exchange process that either cools or heats the indoor environment, depending on the system's mode of operation. This makes it possible to maintain comfortable indoor temperatures.

Condenser

The outdoor component of your HVAC system or heat pump is called a condenser. Its primary purpose is to absorb or emit heat at different times of the year. The condenser of a heat pump and split air conditioner have the same components. Its main pacers are the condensed oil and controls.

Most condensers contain aluminum or copper material for better heat conduction. There is also a fan that moves air within the unit to enhance heat transfer.

Thermostat

A thermostat serves as a control device that allows users to set and maintain their desired temperature levels. The thermostat functions by constantly monitoring the ambient temperature in the space it serves.

When the temperature deviates from the preset target, the thermostat sends signals to the HVAC system to either start or stop the heating or cooling processes. For example, if the indoor temperature rises above the set point on a hot day, the thermostat will instruct the air conditioner to activate and cool the space until it reaches the desired temperature.

Modern thermostats have evolved significantly and often feature programmable or smart capabilities. Programmable thermostats allow users to schedule temperature adjustments throughout the day to save energy when the space is unoccupied. Smart thermostats, on the other hand, can be controlled remotely via smartphones and learn user preferences over time, optimizing energy efficiency and comfort.

Evaporator Coil

An evaporator coil is typically inside the indoor unit of the system, often referred to as the air handler or furnace. The primary function of the evaporator coil is to facilitate the cooling of indoor air. It does so by absorbing heat from the surrounding air, which effectively lowers the temperature within your home or building. Here's how it works:

Refrigerant circulation: The evaporator coil contains a network of tubing filled with a refrigerant gas. This refrigerant is responsible for the heat exchange process.
Airflow: Warm indoor air is drawn into the HVAC system, typically through return ducts. The blower fan within the air handler forces this air over the evaporator coil.
Heat absorption: When the warm air passes over the evaporator coil that is cold, heat is passed from the air to the refrigerant within the coil. This causes the air to cool down and reduces its humidity.
Conditioned air: The now-cooled and dehumidified air is then pushed back into your living space through supply ducts, creating a comfortable indoor environment.

The evaporator coil acts as the heat absorber in your HVAC system, enabling the cooling process that keeps your home or building at a comfortable temperature during hot weather.

Sta So Cool HVAC provides prompt, quality heating, cooling, and air filter services in Pittsburgh and surrounding areas. We prioritize exceptional customer service, offering maintenance and emergency services to keep homes energy-efficient and comfortable in summer heat. Contact us for more information.

The Why’s, What’s, and How’s of an End-of-Season AC Installation

Thu, 17 Aug 2023 17:28:48 GMT

Do you need a new AC system? The peak of the summer-time heat is almost over—and your air conditioner isn't doing its job. Even though you could wait until next summer to invest in a new system, take a look at the why's, what's, and how's of an end-of-season AC installation service.

Why Choose an End-Of-Summer AC Installation?

There isn't one answer to this question. You've used your air conditioner all summer long. But this doesn't mean the system will last until the heat ends or start again easily next year. Consider an end-of-summer AC installation service if:

Your system is old. According to the International Association of Certified Home Inspectors ( InterNACHI ), a central AC system's average life expectancy ranges from 7 to 15 years.
Your system doesn't cool effectively. Do you have warm spots inside of your home? Does the interior environment feel hot and humid? If the system doesn't cool or doesn't cool well, replace it before you spend the rest of the season sweating.
Your system doesn't cool efficiently. Central cooling is expensive. An inefficient system could cost significantly more than you expect to pay. The U.S. Department of Energy notes that a new system could save you 20 to 40 percent on cooling costs.
Your system suddenly stopped. Some breakdowns are easy fixes, while others signal the end of your system's lifespan. If your system suddenly stops and the repair won't solve the problem permanently, you will need a new air conditioner.

Along with these reasons, you may find a better deal during the end-of-season time. There are less shoppers looking for air conditioners and some manufacturers may lower prices to sell leftover summer stock.

What AC System Should You Install?

Do you need to replace your existing air conditioner with the same model or even the same type of system? The answer depends on a few factors. These include:

The system setup. Does your home have air ducts and vents? If not, a central system isn't the ideal replacement. Instead, you may want to consider a mini-split ductless option.
The size. Bigger is not better. A larger than necessary AC system won't cool your home faster or more efficiently than the current one. It may cycle on and off, never reaching the desired temperature and costing you extra in electricity bills.
The warranty. Before you buy a new AC system, ask the contractor about the manufacturer's warranty. A system with a barely-there warranty or a warranty that only lasts for a few months could cost you unnecessarily in the future.

Talk to a qualified HVAC contractor about your options. The professional can help you to learn more about AC systems, your home's cooling needs, and the price you pay for the initial investment versus what you might pay over time to use the air conditioner.

How Should You Install a New AC System?

An end-of-summer installation, like any other AC service, is not a do-it-yourself job. A DIY air conditioner installation could lead to:

Injuries. The electrical requirements of AC installation are too complex for a novice DIYer to try on their own. Failure to install the system correctly could create a shock or burn hazard.
Poor efficiency. A low-quality DIY installation can reduce your new system's efficiency. While you might not notice the reduction right now, you will see an increase in usage costs next summer.
Poor cooling. Like efficiency, this is something that you might not notice as the cooler weather moves in. But you could feel the heat next summer if the system isn't installed properly.

Not only could a DIY installation cause an injury or result in reduced efficiency and cooling power, it could invalidate a warranty. This makes it important to work with a licensed, reputable contractor that specializes in AC installations.

Are you ready to replace your Ac system? Contact STA SO COOL HVAC for more information.

Signs of Inadequate Air Quality and What You Can Do To Improve It

Wed, 26 Jul 2023 17:55:05 GMT

Ventilation is the process of moving fresh air into, out of, or within a room. It helps to improve indoor air quality by diluting and removing pollutants, such as dust, smoke, bacteria, odors, and virus particles. Ventilation also helps to regulate the temperature and humidity levels in your home.

Nevertheless, many homes may not have adequate ventilation, especially during the winter months when windows and doors are closed to keep the cold air out. As a result, air quality suffers. Poor ventilation can lead to various health problems, such as allergies, asthma, headaches, fatigue, and respiratory infections. It can also cause damage to your home, such as mold growth, condensation, rust stains, and discoloration.

How can you tell if your home has unhealthy airflow? Here are some signs of inadequate air quality and what you can do to improve it.

Signs of Inadequate Air Quality

There are often multiple signs of inadequate air quality. Here are some of them.

Moisture or Condensation on Windows or Walls

The presence of visible moisture or condensation indicates that there is too much water in the air and not enough ventilation to remove it. Excess moisture can promote the growth of mold and mildew, which can trigger allergic reactions and respiratory problems. It can also damage your furniture, walls, and floors.

Smelly or Stuffy Air

Air that seems stuffy or smells unpleasant could indicate that there are odors and pollutants trapped in your home and not enough ventilation to clear them out. Odors can come from various sources, such as cooking, smoking, pets, trash cans, or cleaning products. Airborne pollutants come from many sources—including volatile organic compounds (VOCs), carbon monoxide, radon, and other harmful gases.

These inflammatory substances can irritate your eyes, nose, throat, and lungs. Symptoms can include headaches, dizziness, nausea, and fatigue.

Dirty Central Heating and Air Equipment

If components of your HVAC system are dirty, the system may not be working properly. Filters, ducts, or system parts may be clogged with dust and debris.

A dirty HVAC system can reduce the efficiency of your ventilation and increase your energy bills. It can also circulate pollutants throughout your home and worsen your indoor air quality.

Moldy Books, Shoes, or Other Items

The presence of mold or mildew indicates that there are damp and dark areas in your home where mold spores can thrive. Mold can cause allergic reactions, asthma attacks, joint problems, skin rashes, and infections. It can also damage your belongings and reduce the value of your home.

Difficulty Breathing

If you find that it takes increased effort to breathe, your ventilation system may be the culprit. Poor air quality may cause the following symptoms:

Use of accessory muscles
Nasal flaring
Gasping
Cool and clammy skin
Dizziness
Hypoventilation
Abnormal breathing rate or irregular rhythm

These physical symptoms can indicate that you are not getting enough oxygen or that you are breathing in too much carbon dioxide or polluted air. The symptoms may resolve as the air quality improves.

Improving Your Home's Air Quality

If you notice signs of inadequate ventilation, you can take steps to increase the airflow in your living space. They include:

Opening windows and doors whenever possible to let fresh air in and stale air out.
Using fans to create cross-ventilation and circulate the air in your home.
Installing exhaust fans in your kitchen and bathroom to remove moisture and odors.
Changing or cleaning your HVAC filters regularly according to the manufacturer's instructions.

Additionally, you can help lower the number of pollutants in your home by using air purifiers, keeping your home clean and dry, and avoiding high-VOC paints.

Nonetheless, although your efforts may be helpful, the help of a professional will likely have the greatest positive impact on your air quality. If you are concerned about your home's air quality, contact STA SO COOL HVAC. We can improve the ventilation in your home and help you create a healthier and more comfortable living environment.

Benefits of Regular HVAC Maintenance

Mon, 26 Jun 2023 18:55:08 GMT

Your HVAC system plays a crucial role in keeping your indoor environment comfortable and pleasant throughout the year. You might easily take these systems for granted until they start malfunctioning. However, with regular HVAC maintenance, you can prevent such issues and enjoy many benefits beyond a well-functioning system. In this article, explore the top benefits of regular HVAC maintenance and why it's worth investing in.

Extended Lifespan of Equipment

When you invest in an HVAC system, you likely want it to serve you for a long time. That's where regular maintenance steps in. It plays a crucial role in extending the lifespan of your equipment. During maintenance visits, HVAC technicians carefully inspect and clean different parts of your system. They look for potential problems and tackle them before they become big issues.

Regular maintenance prevents premature breakdowns by promptly handling these minor problems and ensuring all components are in good working order. It keeps your HVAC system running smoothly for a longer period. You essentially give your system a regular checkup to catch potential issues early on.

Increased Energy Efficiency

As time passes, HVAC systems gather dust, dirt, and debris. These unwanted elements can block the airflow and make your system struggle to maintain the desired temperature. But with regular maintenance, you can keep your system's parts, like filters, coils, and fans, clean and in excellent shape. This cleanliness ensures that your HVAC system functions more efficiently.

The result? You save energy, reducing the amount of electricity you use. This decrease in energy consumption reflects on your utility bills, which become lower. By taking the simple step of scheduling regular maintenance, you not only keep your HVAC system in top-notch condition but also make a positive impact on your wallet. It's a win-win situation for both your comfort and your budget.

Increased Safety

HVAC systems that aren't properly maintained can be risky. For instance, a furnace that isn't well cared for may develop gas leaks, leading to carbon monoxide poisoning—a harmful and potentially fatal condition. Faulty electrical components and wiring can also increase the risk of electrical fires, posing a danger to your home or office. However, by scheduling regular maintenance, you can prevent these safety hazards.

HVAC technicians will inspect your system thoroughly, identifying any potential risks. They will then make the necessary repairs or replacements to ensure your HVAC system operates safely, including checking gas lines, electrical connections, and overall system performance.

Improved Air Quality

HVAC maintenance plays a crucial role in improving indoor air quality. When technicians perform maintenance, they usually clean or replace the air filters. These filters capture dust, allergens, and other harmful particles that can contaminate the air. When filters get clogged, they hinder airflow and circulate dirty air throughout the space.

Regular maintenance guarantees that the filters remain clean, enabling proper air circulation and reducing the chances of respiratory problems and allergies. By investing in regular HVAC maintenance, you take a proactive step to ensure that the air you breathe indoors is fresh and free from pollutants.

Fewer System Breakdowns

No one likely wants their HVAC system to break down, especially when the weather is extreme. Regular maintenance can help prevent such inconvenient situations. By scheduling maintenance visits, trained technicians can carefully examine your system, looking for worn-out or faulty parts. If they find any issues, they address them promptly.

This proactive approach allows you to quickly catch and resolve problems, preventing sudden system failures. You also avoid costly repairs resulting from major breakdowns by nipping these issues in the bud. Moreover, regular maintenance ensures that your living conditions remain comfortable and pleasant. You won't have to endure unbearable heat or cold while waiting for emergency repairs.

At STA SO COOL HVAC, we understand the significance of regular HVAC maintenance and its positive impact on your comfort and well-being. We provide top-notch HVAC services to ensure your system operates at its best. Contact us today to schedule your HVAC maintenance and experience the benefits firsthand.

Signs That Your Air Conditioner Doesn’t Run Properly

Wed, 17 May 2023 17:00:22 GMT

On those insufferably hot summer days, you probably look forward to your cool air-conditioned home. Therefore, you do not want to risk not having air conditioning for a second on those days. To avoid not having a working air conditioner, keep an eye on your air conditioner and its performance for any issues or changes.

Warm Air

If your air conditioner starts to blow warm air, this is often an obvious sign that something is wrong. Blowing warm air is a sign that the compressor could have an issue or your air conditioner has a restricted airflow. Before calling a professional for assistance, make sure the air conditioner is set to cool and not heat or auto.

High Humidity

Air conditioners are meant to regulate the humidity in the home. If your AC unit does not do this, the air in your home could begin to feel sticky, moist, and uncomfortable. Then, mold can grow in humid places, creating a dangerous environment for your family.

Leaking Water

If anything is leaking, this usually means you need a repair. Water leaks can be dangerous if they are not caught for some time because, just like with humidity, the moisture from the leak can cause mold to grow.

Leaking water could mean that the tube in the air conditioner that removes the condensation could be blocked. In some cases, instead of leaking, the water could turn to ice inside the air conditioner.

Unusual Noises

Your air conditioner could make quite a few noises that can indicate an issue.

Clicking

This usually indicates something is blocking the fan as it runs. If it clicks but will not turn on, this could potentially mean you have an electrical issue. Clicking can also indicate that the fan inside the air conditioner is loose or that your thermostat is not correctly functioning.

Hissing

Hissing is important to listen for. This sound can mean that your air conditioner has up too much pressure. Immediately turn off your air conditioner until a professional can check it out.

Screeching

Screeching can also indicate that pressure is building up in your air conditioner. However, this noise will usually mean that the fan belt is broken or the motor bearings are bad.

Whistling

If your air conditioner starts whistling, this will usually point to issues with the airflow. If the filters in the air conditioner get too dirty, this will make it hard for the air to blow out properly. This can also mean that you have a leak in the ductwork. These are simple fixes, but still call a professional if you are not sure what your next steps are.

Bubbling or Gurgling

Bubbling and gurgling noises can indicate you have a leak or excessive moisture. The tube that drains the moisture may be blocked. Another issue could be that the refrigerant lines are not sealed properly.

If you hear noises coming from your air conditioner and you cannot determine what they mean, turn it off and call a professional.

High Energy Bills

If you have noticed a fast and significant increase in your energy bills but you have not had an increase in how much energy you use, this can mean that something is wrong with your air conditioner. High energy bills can mean that your air conditioner has gotten old and may need replacing or that a leak is somewhere in the ductwork.

If your air conditioner has problems, contact us today at STA SO COOL HVAC. We will get to the bottom of the issue with your unit with quick repair. We look forward to assisting you.

HVAC Air Filters: What You Need To Know

Wed, 19 Apr 2023 19:58:00 GMT

When did you last change your HVAC filter? These devices might seem small, but they substantially impact the efficiency and lifespan of your heating and cooling system. Discover more about HVAC air filters below.

What Is an HVAC Filter?

An air filter is a semi-porous device that sits between your HVAC system and the air in the house. The filter traps dust, pet dander, hair, pollen, and other debris, preventing them from circulating in your home. Over time, the air filter clogs with debris and cannot effectively filter the air, so regularly change the device.

What Are the Effects of a Clogged Filter?

A dirty air filter strains your HVAC system since it works harder to push air through it. By restricting the airflow, a clogged air filter causes the air blower motor fan to overwork and consume more energy, resulting in wear and tear and higher energy bills. In contrast, a clean filter lets air travel more effectively between your home and the HVAC system, and you enjoy lower utility bills.

A dusty air filter also lowers the air quality in your home and aggravates the symptoms of residents with respiratory and skin allergies. Over time, exposure to allergens and contaminants leads to long-term health issues.

When Should You Change the Air Filter?

HVAC experts generally recommend an air filter change every 90 days to boost the efficiency of your heating and cooling system. However, change the air filter more often if you have young children, pets, or family members with asthma and allergies.

Also, inspect the air filter often to determine if you need a replacement. If a dirt coating covers much of the device's surface, you need a new filter to boost your home's air quality. Other signs you need a filter change include dust accumulation in the house, loss of an AC system's cooling power, poor airflow, and sound of excessive strain when the air conditioner turns on.

What Are the Types of Air Filters?

HVAC air filters aren't equal and differ by material, price, and efficiency. Your options include the following.

Fiberglass Air Filters

Fiberglass air filters are popular due to their affordability but aren't very effective in trapping pollutants. While the filter's minimal surface area offers poor filtration, it allows more airflow and protects internal HVAC components from clogging. You must replace these filters every 1 to 3 months, depending on how often you use the HVAC system.

Pleated Air Filters

Pleated air filters are more effective than fiberglass filters because they have a folded design that increases the surface area for trapping pollutants. The filters come in various thicknesses, depending on residential or commercial applications. Pleated filters last longer than fiberglass filters but restrict airflow more than the latter.

HEPA Filters

HEPA filters offer the best filtration for airborne contaminants like dust, pollen, and pet dander and trap small microns like bacteria. As such, the filters are more common in hospitals and medical facilities. You need an HVAC contractor to reconfigure your HVAC system to handle the filter's highly restricted airflow.

What Are MERV Ratings?

When you buy an HVAC air filter, pay attention to MERV ratings, which indicate a model's effectiveness. The Minimum Efficiency Reporting Value rating starts at 1 and goes to 20 and reports a filter's ability to trap particles between 0.3 and 10 microns.

HVAC experts consider many factors before they recommend a MERV rating for your home, such as where you live and who is in your home. If some residents are smokers, have many pets, or live in a polluted area, you need a model with a higher MERV rating to improve indoor air quality.

If you take good care of your HVAC system, it protects your family from allergens and pollutants. Contact us today at STA SO COOL HVAC for filter replacement and other HVAC maintenance services.

6 Factors to Consider When Buying a New HVAC System

Mon, 27 Mar 2023 19:54:11 GMT

HVAC systems cool or warm your home to create a comfortable environment. However, the efficiency of your selected system depends on various factors. Consider the following factors when buying your new HVAC system.

1. Consider the Efficiency Ratings

You have many ways to measure the efficiency of an HVAC unit, but the most common is the Seasonal Energy Efficiency Ratio (SEER). A unit with a high SEER rating is more energy-efficient than a unit with a low SEER rating. The federal government regularly sets minimum SEER rating requirements to increase energy efficiency.

The Annual Fuel Utilization Efficiency (AFUE) is another common way to measure the heating efficiency of your furnace. The AFUE rating is a measurement of the percentage of energy that your HVAC unit converts to heat. Highly-efficient units can convert most of the energy into heat and reduce utility costs.

The other way to measure the energy efficiency of your HVAC unit is to use the Heating Seasonal Performance Factor (HSPF) rating. This rating is a measurement of how well your pump generates heat. You can also check if the unit has an Energy Star certification from the Environmental Protection Agency (EPA).

2. Choose the Correct Size

An undersized or oversized HVAC unit can reduce the comfort of your home and increase energy bills. An oversized unit will produce excessive warm or cool air and consume too much energy to provide conditioned air for a small room. Therefore, an oversized unit will increase your energy bills without providing constant comfort. The unit will also frequently stop and start, increasing the rate of wear and tear.

On the other hand, an undersized HVAC system will have insufficient cooling and heating capacity. The result will be uneven temperature throughout the building. The system will also experience wear and tear quickly, as it has to strain to meet the high demand.

3. Understand Local Climate

Different HVAC units perform differently in different climatic environments. Generally, a heating system is more useful in cold climates, while a cooling system is beneficial in warm climates. Various units also have climate control features that provide multiple options. If you rarely use the climate control feature, choose an affordable HVAC unit with fewer options. On the other hand, if climate greatly impacts your lifestyle and home comfort, a high-end HVAC unit with climate controls is essential.

Also, determine whether the HVAC vents terminate inside or outside the house. If the vents terminate outside, you might have to seal them to prevent heat loss in cold environments. Installing storm screens on all windows and doors can also help maintain comfortable indoor temperatures, regardless of fluctuating outdoor weather conditions.

4. Determine Your Budget

Many people often assume that expensive HVAC systems are better than less expensive units, but this is not always true. If you don't compare the prices of multiple HVAC brands, you might pay too much for the wrong HVAC unit. The most important thing is to select an HVAC unit that has the features that you require.

5. Consider the Installation and Maintenance Requirements

Different HVAC systems have different maintenance and installation requirements. The best strategy is to select a unit that has an easy installation process and doesn't require frequent maintenance. Such a unit will reduce your installation and maintenance expenses.

6. Check Compatibility With a Programmable Thermostat

The HVAC system must allow for programmable thermostats. Programmable thermostats enable you to control the temperature and functionality of the HVAC system from anywhere. The system can also automatically turn off or reduce usage to avoid wasting energy. Ultimately, a programmable thermostat increases the lifespan of your HVAC unit and lowers energy bills.

Once you've selected your preferred unit, STA SO COOL HVAC will help you to install the system in your home. We can also maintain and repair your air conditioner whenever necessary. Feel free to reach out to us today for more information.

Possible Culprits of Frozen AC Coils

Fri, 17 Feb 2023 17:10:14 GMT

A functional AC is crucial for a healthy and comfortable home during the hot season. The cooling system regulates the temperature and ensures good indoor air quality. As such, the importance of a functional AC cannot be stressed enough.

However, while the AC is made to last, that does not make the system infallible. The AC unit is prone to malfunctions, perhaps due to wear and tear or poor system maintenance. One common issue is when the AC coils freeze over. Discover some potential culprits of frozen AC coils and what to do.

Clogged Filters

The cooling unit requires a constant flow of air to function. But first, the air must go through the filters to remove dust, pollen, and other debris circulating your home.

Over time, the debris may accumulate on the filter, causing it to clog up. Consequently, the blockage restricts proper airflow, which may cause moisture to settle on the coils and eventually freeze over.

The best way to prevent this problem is to clean or replace your filters every one to two months . Also, look for other signs of faulty air filters, such as reduced air quality and increased energy bills to establish if the air filters are due for cleaning or replacement.

Faulty Thermostat

The thermostat is like the brain of the AC unit. This component runs on a schedule to keep your home at a comfortable temperature and turn off when not needed.

If the thermostat is broken or faulty, it may sense the wrong temperature or stop working entirely. In return, the AC may run continuously and freeze the coils due to prolonged exposure.

If you suspect your thermostat is faulty, hire an experienced technician to replace it promptly. The technician will also conduct a full inspection of the unit to determine if other underlying issues are causing the coils to freeze.

Leaky Refrigerant

The refrigerant is probably the most critical component of an AC system. This chemical travels throughout the unit, absorbing and releasing heat to cool the air in your home.

But the unit must have high pressure for the heating and cooling process to occur. If the refrigerant leaks, there won't be adequate pressure, which causes the chemical absorbs more heat than it should. In turn, this creates low temperatures and eventually freezing of the coils.

Note that leaky refrigerant is not just an AC problem but may also harm the environment. Moreover, it is illegal to leave the refrigerant leaking. So, as soon as you notice signs of refrigerant leakage, call in a qualified technician to inspect and repair the unit.

Clogged Condensation Line

Most AC systems come with a condensation line, which drains out the moisture created during the cooling process. But when this line is clogged due to dust and debris, the issue inhibits the system's proper functioning.

Since moisture will have no passage, it may start to back up. And if the moisture sits on the coils for a long, they will eventually freeze up.

Besides frozen coils, you can tell if you have a condensate line problem if you notice awful odors from the HVAC or visible moisture pooling near your indoor unit. In that case, let a professional come in for an inspection. The specialist has the tools and skills to determine the root of the issue and unclog the condensate line if necessary.

Now that you understand the possible causes of frozen AC coils, you can take adequate measures to prevent this problem. You can also detect the issue early and repair it before further damage.

You can trust us at Sta So Cool HVAC for expert AC repair services. Our technicians are knowledgeable and experienced in handling HVAC issues, including frozen coils. Contact us for a consultation, and let's discuss how we can help restore the functionality of your AC unit.

2 Common Problems With Your Heat Pump

Sat, 21 Jan 2023 04:07:04 GMT

Do you have a heat pump that does not work properly? If so, you are not alone. Heat pumps are a great way to keep your home comfortable all year round, but like any piece of machinery, they can sometimes experience problems. Discover two of the most common problems that you might encounter with your heat pump and why these issues occur.

1. The Heat Pump Does Not Activate or Deactivate

Several underlying issues, such as an incorrectly connected or set thermostat, a lack of power, a defective starter capacitor, closed registers, clogged air filters, and an unreliable reversing valve, might cause your heat pump to not switch on or off.

A heat pump's major control is the thermostat. Therefore, the heat pump will not turn on or off if it is wired or set up improperly. Also, the heat pump will not receive the necessary information if the thermostat has lost electricity. Check the circuit breaker to ensure it has not tripped. Also, ensure that the power switch is on at both the interior and outdoor units.

The heat pump will be unable to control the temperature adequately and may eventually overheat and shut down if it does not receive enough air because of closed registers or unclean air filters.

The starter capacitor, which provides electricity to the motor, can malfunction, and prevent the heat pump from turning on. The heat pump's clicking noise could be a sign of a bad capacitor.

Finally, the reversing valve may break and needs replacement if the heat pump only operates in one of the modes, such as heating or cooling.

2. The Outdoor Unit Freezes

When the outdoor coil of a heat pump gets too cold, a film of ice forms on it, which causes the outdoor unit to freeze. This frost hinders heat movement and significantly lowers the heat pump's efficiency, which lowers energy efficiency and performance.

One of the most frequent reasons for a frozen outside unit is a low refrigerant charge. The system will be unable to generate enough heat to melt wintertime ice buildup if the refrigerant levels are low. Your indoor coil most likely froze over the summer, and in either scenario, the heat pump needs to work harder to keep you comfortable.

Precipitation on the outdoor unit is another factor that can cause it to freeze. Moisture from melting snow or ice might spill onto the coil during the winter and subsequently freeze. Although your device has a defrost option, it might not be sufficient to prevent a serious freeze-over. Determine the source of the water, such as a leaky gutter, and fix the leak to fix the problem.

Alternatively, your heat pump's defrost mode is set up to turn on periodically to prevent ice development on the outdoor unit. Your outdoor unit might not defrost due to a broken defrost timer, which would result in a frozen outdoor unit.

Another reason for a frozen outside unit is a broken fan motor. The fan pulls air through the coil in your outside unit, which contributes in the crucial heat transfer process necessary for both heating and cooling your home. Insufficient or no airflow due to a broken fan motor might lead to the coil freezing over.

The origin of a frozen outdoor unit can also be a clogged outdoor unit. Winter snowdrifts can prevent the ice on your outside unit from thawing if they have built up around it.

Consult a heating, ventilation, and air conditioning (HVAC) specialist if your unit experiences these problems. A HVAC technician can help resolve and prevent further problems and even offer guidance to maintain your unit. Contact our HVAC specialists at Sta So Cool HVAC for professional assistance.

7 Signs Your Furnace Needs Attention

Wed, 11 Jan 2023 19:13:30 GMT

The winter season is here with us. Thus, you must ensure that your furnace works correctly to keep your house warm throughout this season. But how can you tell if your furnace needs attention? This blog post will explore seven signs your furnace may need attention to ensure it runs smoothly and efficiently. Don't let a faulty furnace ruin your winter — stay warm and safe by keeping an eye out for these telltale signs.

1. Unexpected Increase in Energy Bills

An unexpected boost in your energy bills can signify that your furnace does not run efficiently. You might instinctively turn up the thermostat, or an automated system turns the heat. An inefficient furnace uses more gas to maintain similar temperatures in your house, which leads to longer run times and increased energy consumption.

2. Strange Noises

Most furnaces will make a mild noise while in operation, which is typical for any system. However, humming, popping, and squeaking noises can highlight mechanical issues, most likely due to worn-out parts, loose components, or a buildup of dirt and debris.

3. Unusual Smells

An extended period of dormancy can cause your furnace to release the smell of the fuel you use when it operates during the first few moments. For example, more households will use their furnace this winter and might experience slight gaseous scents during the first few days. However, this scent dissipates as the furnace continues its operation. If this scent persists for a long time, you might have a gas leak.

4. Frequent Cycling

Thermostats help furnaces pump more heat when the room temperature falls below a certain threshold. However, frequent cycling that does not follow this framework indicates that a component has interfered with your furnaces' heating cycles. A deteriorated fan motor and dirty heat sensors can cause this issue.

5. Weak Airflow and Cold Air

A furnace performs two functions: it produces heat and uses air to circulate the heat throughout your house. Thus, your furnace must be able to circulate heat through the ducts and vents to the assigned rooms.

Weak airflow can condense moisture on your walls or windows. The condensed air can point to issues with either your vents or the furnace. Also, weak airflow can cause cold spots in the room, since the heated air does not circulate properly in the house. Air circulation and cold spot problems in the furnace result from dirty filters, issues with the blower motor, and clogged ducts.

Finally, the lack of hot air in the house indicates the furnace cannot heat the air adequately or at all. Cold air results from issues with the pilot light or heat exchanger.

6. Pilot Light Problems

Gas furnaces use a flame to heat the air that it will circulate. This flame is blue, indicating that the pilot light receives adequate air to keep the flame going. A yellow flame indicates an issue with airflow to the pilot light. A dirty burner can cause the carbon monoxide the flame produces to choke airflow and constrict the pilot light.

7. Age

As a furnace ages, its operational efficiency reduces. For example, you might face problems with its activation. The furnace might require too much effort to light, or you might need to turn it on repeatedly to maintain constant operation. You can replace deteriorated components with new ones to sustain the furnace's operation.

However, replace your furnace if it is more than 20 years old, as most of the components will have faced significant wear and tear at this point for a proper replacement.

What Is a Central AC Contactor?

Mon, 21 Nov 2022 17:55:33 GMT

When you turn on your central air conditioner, the compressor motor relies on a kickstart from the run capacitor. The contactor is a separate AC component that makes that connection possible. Unfortunately, central AC contactors are not immune to failure. Here's some key information about your AC contactor and the problems related to a failing contactor.

What Is an AC Contactor?

A contactor is an electrical device that functions much like a switch to control the flow of current to the AC compressor. While the contactor is charged, it generates a magnetic field that moves a metal armature. When the armature reaches the closed position, it completes the circuit between the AC start capacitor and the compressor motor. This releases stored energy from the capacitor to the compressor at system startup.

What Causes an AC Contactor to Fail?

Contactors are very sensitive to power fluctuations. Lightning strikes and power surges are common causes of AC contactor damage. Excessive voltage can cause the contact faces to reach extremely high temperatures. Such a malfunction may even fuse the contact faces together when the contactor is closed, a problem known as contact sticking.

An electrical overload can also easily burn out the electromagnetic coil inside the contactor. Coil burnout will render the contactor inoperable since it can no longer create a magnetic field to move the armature. Industrial contactors such as those used in HVAC applications usually contain an electromagnetic coil rated for 24 volts .

An AC contactor may also fail if an electrical short occurs somewhere in its circuit. Shorts may lead to sparks or arcing between the contact faces, which in turn may leave scorched pit marks on them. Pitting on the contactor may prevent it from completing the compressor startup circuit if the contact faces cannot make a solid connection.

While there's no guaranteed option to prevent your AC contactor from failing, the good news is it's an easily replaceable part. Your HVAC technician can remove the old contactor and wire an identical model in place during a quick service call. Taking action to repair the contactor now can prevent unnecessary damage to your AC compressor.

What Are the Signs of Contactor Problems?

The symptoms of AC contactor problems vary depending on the position of the contactor when it fails. If the contactor gets stuck in the closed position, it will send constant power to the compressor. You may notice your compressor running continuously or freezing over. You may also hear an electrical humming sound as the contactor coils are charged. The contactor will need to be replaced to restore your AC to efficient operation.

A contactor that is stuck open will prevent the compressor from operating at all, and your air conditioner will blow warm air. When the contactor is failing, you may hear a clicking or chattering sound from your condenser. This is the sound of the armature mechanism attempting to move inside the malfunctioned contactor. To test for unusual sounds from the contactor, stand outside near the condenser while a helper turns on your AC.

An HVAC technician can diagnose a burnt-out contactor by connecting a multimeter to the terminals on either side of the contactor. A low ohm reading means the component has failed due to coil burnout.

A bad contactor is a simple problem that can still bring your central air conditioner to a halt. If your AC is wasting energy, freezing over, or refusing to start, the contactor is one of several components that could be to blame. Call us today at STA SO COOL HVAC for a professional HVAC inspection to narrow down the causes behind your AC issues.

Causes of Poor Indoor Air Quality

Wed, 19 Oct 2022 01:21:15 GMT

Air pollution caused by power plants, vehicles, and outdoor machines is widely known. Consequently, many assume that the air we breathe outdoors is the most polluted. However, that simply isn’t true. Pollution can also be present inside buildings. Indoor pollutants can have a negative impact on health and comfort.

The following are some of the most common indoor air pollutants.

Pesticides

People use pesticides to kill or control pests. Pesticides are a common cause of poor indoor air quality, and most are toxic to humans. The EPA estimates that 80 percent of pesticide exposure happens indoors.

Most households often use insecticides and disinfectants, which leave traces on the floor, furniture, wall, or soil. Pesticides come in sprays, powders, and balls. Children are the most at risk because of the proximity to contaminated surfaces.

Symptoms of exposure to pesticides may include:

Eye, nose, and throat irritation
Dizziness
Nausea

To reduce exposure, only use pesticides approved for the general public. Wear protective equipment and ventilate the area well when using pesticides.

Asbestos

Asbestos is a fibrous material with excellent heat resistance. Due to this innate characteristic, asbestos was popular for insulation and as a fire retardant until the 1980s. However, the adverse effect on human health and air quality has reduced its usage in the construction industry.

Moderate levels of asbestos exposure are not dangerous. But inhaling suspended fibers for long periods can result in lung cancer and mesothelioma. Such harmful effects typically take years after exposure to develop.

Asbestos fibers suspended in the air are invisible to the naked eye. So if you suspect asbestos, you are better off leaving the premises or calling trained professionals to deal with it.

Carbon Monoxide (CO)

Carbon monoxide is an odorless, colorless, and toxic gas, making it very dangerous. Some familiar sources of carbon monoxide at home include:

Gas stoves
Leaking chimneys
Automobile exhaust from the garage

When you inhale CO, it attaches to hemoglobin in the blood, restricting oxygen intake in your body. The effects of CO exposure vary depending on the length of exposure and concentration. Intake of highly concentrated CO can cause headaches, impaired vision, nausea, and even death.

To reduce the risks of exposure in your home, ensure family members use appliances and stoves appropriately. Installing a CO detector near sleeping areas also helps.

Mold and Mildew

Mold exists everywhere, provided there is dampness or high humidity. Mold is an indoor pollutant that can stir up a host of health problems, including asthma, respiratory infections, and allergies. If your home has excessive humidity, you may have mold growing somewhere.

Some common mold spots include:

Bathrooms and kitchen with inadequate ventilation
Leaking ceilings
Damp carpets

To reduce the possibility of exposure at home, control the sources of moisture. That means fixing leaks quickly and increasing ventilation. Installing a dehumidifier also helps remove water trapped in the air.

Cleaning Products

Home cleanliness is essential for your health — and sanity. However, cleaning products often contain harmful chemicals that pollute the air. Many cleaning products contain volatile organic compounds (VOC) that can be responsible for chronic respiratory issues.

Cleaning supplies containing VOCs include air fresheners, chlorine bleach, oven cleaners, and upholstery cleaners. When using any of these products, ensure the area is well-ventilated. To protect you and your family, ensure the use of EPA-approved cleaning supplies for your domestic cleaning. Alternatively, natural products like vinegar and baking soda can also do the trick.

In attempts to improve their health and well-being at home, families rarely consider indoor air quality. However, given how much time you spend at home, it makes sense to improve the air quality in your home. Taking proactive measures to improve indoor air quality can help ensure the comfort and safety of everyone who enters your building.

Feel free to contact us today at Sta So Cool HVAC for professional help if you're concerned about the air quality in your home.

Top 8 Tips for Maintaining Your HVAC System

Tue, 20 Sep 2022 17:31:19 GMT

As a homeowner, one of the most important things you need to do is maintain your HVAC system. Your HVAC system keeps your home comfortable all year round, which is why you need to ensure that it runs properly. Here are eight actionable tips to help you maintain your HVAC system.

1. Change Your Air Filter Regularly

One of the most important things you can do to maintain your HVAC system is to change your air filter regularly. A clogged air filter can restrict airflow and cause your system to work harder than it needs to. Consequently, this can lead to higher energy bills and a shorter lifespan of your system. Depending on your filter type, you should change it every three or so months.

2. Keep Your Outdoor HVAC Unit Free of Debris and Vegetation

Your outdoor HVAC unit should be free of debris and vegetation. Leaves, twigs, and other debris can accumulate on the unit and restrict airflow. Vegetation can also grow around the unit, blocking the flow of air and can cause the unit to overheat. Trim back any vegetation around the unit and clean off any debris.

3. Clean the Condenser

The condenser is the part of your HVAC system responsible for releasing heat from your home. It is important to keep the condenser clean to keep your system running efficiently. You can do this by using a brush and some soapy water or a vacuum cleaner with a brush attachment to remove any accumulated dirt or debris on the coils. Just be careful not to damage the fins on the condenser.

4. Clean the Drain Lines

Another part of your HVAC system that needs to be kept clean is the drain line. The drain line is responsible for carrying away any condensation your system produces. If the drain line becomes clogged, it can cause water to back into your home, which will damage your system and lead to mold growth.

Clean the drain lines regularly to prevent them from becoming clogged. To clean the drain lines, flush them with a solution of bleach and water.

5. Upgrade Your Thermostat

If you have an older thermostat, it may be time to upgrade to a newer model. Newer thermostats are more accurate, which can help your system to run more efficiently. In addition, many newer thermostats come with features that can help you to save energy, such as programmable settings and energy-saving modes.

6. Lubricate All Moving Parts on Your HVAC System

Another important maintenance task is lubricating all of your HVAC system's moving parts. This includes the fan motor, the blower motor, and the bearings on the motors. Lubricating these parts can help to prevent them from seizing up and can extend the life of your system.

7. Insulate Your Home

Insulating your home can also help improve your HVAC system's efficiency. By keeping the heat in your home, you can reduce your system's work, saving you money on your energy bills.

Start by insulating your attic and walls. To prevent drafts, you can seal any gaps or cracks around doors and windows.

8. Schedule Annual Maintenance With a Professional HVAC Contractor

Finally, scheduling annual maintenance with a professional HVAC contractor is essential. During a maintenance visit, the contractor will inspect your system and perform any necessary repairs or adjustments. This can help keep your system running efficiently and prevent small problems from turning into bigger ones.

If you need help maintaining your HVAC system, look no further than Sta So Cool HVAC. We are a local family-owned and woman-owned business serving Sewickley and the surrounding areas with the best HVAC services. We'll be happy to help you with all your HVAC needs, from maintenance to repairs. Contact us today to get started!

Preparing Your Home Before Vacation

Thu, 20 May 2021 21:29:00 GMT

Ready for a vacation?

Your home should be too! Careful planning can not only help protect your home and your belongings while you travel, but also provide your family with some energy savings to spend on souvenirs! Follow these five simple tips to prepare your home for your absence.

"Whether it’s a weekend road-trip or stay at the lake house, remember to follow some of these energy-saving tips to avoid unnecessary expenses while you’re away.

1. Turn off the lights.

If you decide to keep any of your lights on as a security measure, invest in an automatic timer. It can be programmed to turn on your lights during late evening and early morning hours while preventing wasted energy during the day.

2. Turn down your air conditioner.

While it’s important to keep the air circulating in your home while you’re gone, you can drastically cut down on energy usage by turning your thermostat up to 85 degrees. If you have a programmable thermostat, simply use the “vacation” feature to maintain safe and efficient indoor temperatures while you’re gone.

3. Unplug appliances and electronics.

Even when they’re turned off, anything that’s plugged into the wall can continue to consume energy. By unplugging your devices or using a smart power strip, you’ll avoid wasting standby power. Don’t forget to unplug your washer and dryer, too.

4. Adjust your water heater(s).

Turn your water heater down to “low” or to “vacation” mode. If your pool also uses a heater, consider purchasing a pool cover that will help minimize heat loss so that you can avoid the cost to reheat it.

5. Refrigerator:

If you’ll only be gone a few days, turn your refrigerator’s thermostat up a few degrees. If you’ll be gone more than two weeks, clean and empty the refrigerator, prop the door open, and unplug the unit.

Whether it’s a weekend road-trip or stay at the lake house, remember to follow some of these energy-saving tips to avoid unnecessary expenses while you’re away.

Call AirPro Expert at 1-800-123-4567

To set up an appointment with one of our Experts who check your current systems for efficiency improvements!

Will your A/C make it through Summer?

Sat, 15 May 2021 20:45:00 GMT

It’s hot and getting hotter.

According to the National Oceanic and Atmospheric Administration, the forecast for August through October calls for hotter than normal temperatures everywhere. How can you prevent your AC from breaking down when you need it most?

"Regular maintenance like changing air filters and duct cleaning help keep your HVAC system running efficiently potentially saving energy and lowering your cooling bills. However, extreme heat, clogged vents or faulty wiring, can overtax your system and may cause AC failure at the worst time possible.

Comprehensive Preventive Maintenance

[scp_block_quote_alt width=”33%” float=”right”]We’re ready to handle all your HVAC needs, from preventive maintenance and emergency repairs, to new system recommendations and installation.[/scp_block_quote_alt]

A comprehensive preventive maintenance inspection and service by an AirPro Expert certified HVAC technician could save you from a costly repair or two. Being uncomfortable in your own home is the last thing you need.

Let one of our licensed HVAC pros ensure your AC is prepared for the rest of the summer. Regular maintenance like changing air filters and duct cleaning help keep your HVAC system running efficiently potentially saving energy and lowering your cooling bills. However, extreme heat, clogged vents or faulty wiring, can overtax your system and may cause AC failure at the worst time possible.

Our comprehensive HVAC tune-up package includes:

Coolant level and pressure checks
Thermostat calibration
Electrical system inspection and tightening, including wiring, contacts, capacitors and relays
Evaporator coil and condensate drain cleaning
Cleaning and inspection of the condenser, outdoor disconnect, fan motor and blades
Lubrication as needed
Plus more safety and efficiency checks

Call 1-800-123-4567 today

To make an appointment with your local AirPro Expert brand! We’re ready to handle all your HVAC needs, from preventive maintenance and emergency repairs, to new system recommendations and installation.

Is a More Expensive HVAC Filter Better?

Fri, 23 Apr 2021 21:14:00 GMT

HVAC Air Purifiers

Whole-house air purifiers are becoming an increasingly popular component of the heating and cooling systems in many homes. Wondering why? Check out the benefits below!

Fewer allergy symptoms.

Unlike standard air filters, whole-house air purifiers can catch potential allergens down to .3 microns in size, removing up to 99.97 percent of particles from the filtered air.

Compact size.

Whole-house air purifiers are conveniently installed within the HVAC air handler system, eliminating the unsightly portable units in different rooms throughout the house.

Cost-effectiveness.

Whole-house air purifiers save you the expense of having to purchase both air purifier filters and HVAC filters.

Less Noise.

Because whole-house air purifiers eliminate the noise associated with some portable units, they are able to create a more comfortable and healthier indoor environment with little noise.

Low Maintenance.

While standard HVAC filters must be changed at least every 90 days, whole-house air purifiers last 3 to 5 years with little to no maintenance. And these units can be incorporated into your existing HVAC system.

"Keeping your eyes and ears open for warning signs can prevent that scenario where the system quits in the middle of night or for businesses, during work hours on the coldest day of the year,” said Michael Flag, president of AirPro Inc., a leading HVAC serving company in New York. “Simple maintenance during the year will prevent this problem and keep your home or business warm during the cold winter weather

Contact your AirPro Expert to a schedule a no-cost analysis of the benefits of whole-house air filtration.

Call 1-800-123-4567 today

To set up your in-home consultation.