AC not cooling: AC Issues You'll Encounter

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You really on your HVAC system to keep your home comfortable no matter what the weather or time of year. Servicing and maintenance for common HVAC issues is a must, and even the best HVAC systems require professional servicing. By being aware of common HVAC issues, you can know what to expect, what to look for, and when to contact a professional for assistance.

Three Common HVAC Issues

1. Electrical Issues. As with many complex systems, your HVAC system can develop wiring issues. These can be frayed wires, electrical shorts, and other related issues. This can cause unpredictable performance and other issues. Your thermostat is a common part of your HVAC system that can have electrical issues. A bad thermostat makes the operation of your HVAC system unpredictable and, in a worst-case scenario, can make it inoperable.

2. Clogged Filters. Your HVAC system’s filters are one of its most common service items. Over time, dust and other debris can cause your air filters to become clogged. This reduces the effectiveness of your HVAC system and also increases stress on various parts, which can shorten the useful life span of your HVAC system.

3. Strange Noises. If your HVAC system is making strange sounds, it can be a sign that an underlying issue needs attention from a professional. If you hear sounds such as banging, squeaking, or rattling, issues can include lose parts or issues with your blower motor. A professional can isolate what is causing these odd sounds and make proper repairs.

When You Need HVAC Service for Common HVAC Issues

At Air Assurance, we strive to provide residents of Broken Arrow and all nearby communities with the best in HVAC service. We help with a variety of HVAC service and repair needs, including regular servicing, repairs, and system replacement and installation. If your HVAC system is not operating correctly or providing the level of performance you expect, contact us today to see how we can help.

How Much Trouble Can Mold Cause in Your HVAC Unit?

HVAC mold can reduce heating and cooling efficiency. What’s more, it can also be the source of allergic reactions and illness in certain persons with sensitivity to mold spores. Microscopic airborne spores that spread mold contamination easily infiltrates houses and are eventually drawn into the airflow of the home’s HVAC system. Here are some examples of the places HVAC mold can develop in cooling and heating units — and perhaps the problems it can cause for occupants of the house as well. 

• Ductwork. Airborne spores accumulating inside ductwork are often exposed to condensation due to high indoor humidity. This moisture triggers dormant spores to turn into active HVAC mold growth. Toxic reproductive spores may be spread throughout the house by contaminated ductwork and can be the source of serious allergic reactions in some individuals.

• AC coils. As airflow passes through the central air conditioner evaporator coil in the indoor air handler, spores present in the airflow contact condensation inside coil passageways. Resultant HVAC mold growth in the coilinhibits coil heat transfer and degrades cooling efficiency. In time, mold growth may obstruct AC airflow through the coil.

• Condensate drain pan. Situated beneath the indoor air handler, the condensate drain pan collects many gallons of condensation daily during summer AC operation, safely diverting the water into a plumbing drain line. Spores from the AC airflow may contaminate the wet pan and trigger active mold. This mold growth frequently clogs the condensate drain line, causing the drip pan to overflow, which can cause indoor water damage. 

To Prevent HVAC Mold

• Replace the HVAC air filter every month during the summer AC season and at least every other month when the furnace is running in the winter.

• Schedule annual preventative maintenance. This in-depth procedure provided by a qualified HVAC contractor includes inspection of the system for signs of HVAC mold in coils, ductwork, and the condensate drain.

• Reduce indoor humidity. To thrive, mold prefers humidity levels above 50%. If you live in a humid climate, consider a whole-house dehumidifier to reduce indoor mold contamination.

Ask the professionals at Air Assurance for advice and expert service to prevent or eliminate HVAC mold growth.

The 5 Most Common HVAC Challenges

While surprises happen once in a while, certain common HVAC issues do tend to come up over and over again. A qualified professional HVAC service technician learns to recognize the symptoms and quickly determine the best approach to restore full function, performance, and efficiency. Here are five of the most common HVAC issues we see and what’s required to resolve the problem.

1. Dirty filter. Low airflow is responsible for any number of issues in HVAC equipment, from poor heating or cooling performance to high operating costs to bad indoor air quality. The most common cause of low airflow is simply a dirty, clogged air filter. Change the air filter at least every other month to support maximum airflow.

2. Leaky ducts. Once a house is more than 10 years old, ductwork leaks are an increasingly common cause of low HVAC energy efficiency and substandard comfort level. A full duct inspection, including a system-pressure test, can determine the extent of leakage. Your HVAC contractor can discuss options for sealing ducts.

3. Closed vents. Sometimes occupants close the HVAC supply vent in one room or more. It's a bad idea, as one closed or obstructed vent tends to unbalance system airflow throughout the house, resulting in inconsistent temperature control. Leave all supply and return vents open in all rooms, if possible.

4. Low refrigerant. The lifeblood of your air conditioner, refrigerant circulates between the indoor evaporator coil and the outdoor condenser coil. An A/C doesn’t use up refrigerant. If symptoms of low refrigerant occur, the problem is usually a pinhole leak. Simply adding more refrigerant isn’t the answer. A qualified service tech has the specialized equipment to track down the leak, repair it, and restore the refrigerant to the proper level.

5. The system is turned off. It happens! If there’s no heating or cooling, the problem sometimes turns out to be the simple fact that the thermostat is set to “Off” instead of “Heat” or “Cool.” Always check that first, just to make sure, before making a service appointment.

For professional service to resolve these and other common HVAC issues, contact the experts at Air Assurance.

Have Your Air-Conditioning System Checked Out Now To Keep It Humming All Summer Long

Things are beginning to heat up here in Broken Arrow, reminding us that summer will be here before we know it. Before the spring weather gives way to those hot, sweaty dog days, make it a priority to have your air conditioning system checked out. It’ll be comforting to know that you are doing your best to prevent a breakdown on one of those stifling days when you need cool air the most.It’s also a great way to keep a handle on your summer electricity bills, since air conditioners that are running efficiently consume less energy. With regular maintenance, a good A/C system can last a long time, so make sure that you’re getting the most mileage possible out of yours.One simple thing that you can do yourself to reduce your energy costs is to keep your air conditioning unit clean (wash from the inside out). Make sure that the air filter and vents on the inside and outside are dirt- and dust-free; remove any debris and make sure the vents are clear of anything that could obstruct them.A service technician will be able to dig deeper by:

• Checking the refrigerant, air flow and thermostat
• Making sure that the ducts are all properly sealed
• Tightening connections as necessary
• Checking the motors for wear and tear and lubricating them

He or she should also be able to diagnose and resolve other issues your air conditioning system may be experiencing, such as over-frequent cycling on and off, ice buildup, odors or any problems with the breakers. To make sure you’re getting the best advice possible, find someone who is a certified NATE technician (North American Technician Excellence).Don’t take any chances with your comfort or energy bills this summer. Have the expert NATE-certified technicians at Air Assurance service your air conditioning system now, and enjoy smooth sailing all summer long. To ask questions or to get expert advice on this or other HVAC issues, please visit our website.Our goal is to help educate our customers about energy and home comfort issues (specific to HVAC systems).  For more information, click here to download our free Home Comfort Resource guide. Air Assurance services Tulsa, Broken Arrow and the surrounding areas. To get started, check out our website or see our current promotions.