Common Air Conditioner Problems You May Face This Summer

Air conditioners make summers bearable. Therefore, owners should ensure that they have reliable air conditioning units in the coming months. It is essential that you learn about common air conditioner problems you might encounter with your air conditioning system and how you can prevent them. This will go a long way in improving your home comfort and reducing stress throughout the season. In this article, we discuss some of the most common cooling system problems that homeowners face during the summer.

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Top Air Conditioning Problems That Homeowners Face During The Summer

image of a homeowner keeping cool with fan due to broken air conditioner

Keep reading to explore some common cooling system problems that typically occur during the hot weather.

Air Conditioner Is Not Turning On

A tripped circuit breaker can result in the air conditioner being completely unresponsive. It needs to be reset before it is tested again. Check the plug as well. It might have become loose, so re-plugging it may be required. Replace the thermostat batteries with new ones as well. If the AC problem persists, contact your local, trusted HVAC professional to conduct the right diagnosis and repair.

Air Conditioner Makes Noises

image of a man covering ears because air conditioner noises

It is normal to hear a constant low hum from your air conditioner. However, odd sounds are not. Listen to the noise your unit produces as it can tell you the kind of problem your unit might have. For instance, rattling can be because of the motor assembly while clicking sounds can be traced to relay issues. Hissing indicates a leak, while buzzing can be due to electrical faults. An HVAC professional can determine the problem immediately when they hear the air conditioning unit.

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Air Conditioner Doesn’t Blow Cold Air

The central air conditioner is responsible for filling your home with cold air. The air filter might be clogged with dirt if it cannot do so. As a result, air cannot flow freely through the system. The condenser might freeze, reducing the cooling ability of your air conditioner. Ensure that the filter is replaced regularly to prevent this issue.

Air Conditioner’s Outside Unit Freezes

frozen air conditioner compressor

Various culprits can trigger this situation. There might be low refrigerant levels because of a leak. The outdoor temperature can also plummet, or there is a problem with the blower motor. Another cause is there is not enough airflow. The best way to determine the root cause is to have an HVAC professional inspect the system.

AC Refrigerant Leak

The refrigerant acts as the air conditioner’s lifeblood. Therefore, the air conditioner will have efficiency and performance problems when there’s a leak. Your home’s energy consumption will spike, and uneven cooling will occur. The coils will also freeze, and this can lead to compressor damage. Inspecting the air conditioner regularly means finding possible refrigerants leak early. This way, they are repaired early as well.

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Frozen Air Conditioner Evaporator Coil

Constant airflow is crucial in preventing the evaporator coil from freezing. If this is an issue, check the entire channel for any clogs. The issue might be because of clogged vents, dirty air filters or a broken fan. Prevent this from happening through periodic cleaning and maintenance.

Air Conditioner Electric Control Failure

image of a homeowner at electrical panal checking air conditioner circuit

Air conditioners run at peak performance when at a steady state. However, component wear and tear are hastened if it frequently cycles, especially its compressor. The blower motor controls and fan motor might also be affected. These issues can cause electric control failure, so the affected components cannot respond.

Air Conditioning Unit Leaks Water Outside

Humid days can bring about condensation on the coils. The water is typically drained out of the air conditioner through a drain line. However, these specially designed channels can get damaged or blocked, and leakage can happen. These problems can be due to incorrect installation, broken condensate pan, or clogged drain pipes. Cleaning the drain pipe can resolve this issue immediately.

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Air Conditioner Drainage Problem

Poor drainage causes water to become stagnant inside the air conditioner. This encourages fungi and bacteria to grow. As a result, foul smells will eventually circulate in the house. This creates an unhealthy and unpleasant situation. Professional checks and upkeep help prevent bad odors from developing in your air conditioning system.

Thermostat Sensor Problem

Thermostat sensors detect the current ambient temperature. It will trigger the air conditioner to turn on if it is too hot and turn off if it’s too cold. Faulty readings can happen when the sensor is improperly placed. Technicians can reposition and calibrate them to ensure optimum function.


Easy Steps To Prevent Air Conditioner Problems

Here are some easy steps you can take to avoid problems with your cooling system:

Check the HVAC Filter

Dirty filters result in a variety of problems. Heed the manufacturer’s advice and conduct regular air filter replacements. It is one of the best ways to prevent problems. It is recommended that you replace them every one to three months. However, let the filter’s condition guide you. Replace them when they get clogged, even before the scheduled date.


Clean the Air Conditioner Condensing Unit

The outdoor unit is exposed to dust and debris round the clock. Dirty coils cannot effectively transfer heat outdoors. A simple solution to this is to clean the surfaces periodically. Remove any trash, fallen leaves, branches, and other objects.

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Ensure That the HVAC Vents Aren’t Blocked

image of an hvac air vent

Ensure that the vents are open at all times so air can flow freely. The poor airflow can sometimes be caused by objects blocking the vents, such as furniture, plants, and curtains. Keep an eye on them so that you can remove any blockages immediately when needed.

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Install a Programmable Thermostat

Replace your old thermostat with a new one that offers better performance and calibration. If possible, install a programmable thermostat. This way, you can set the system’s cooling schedule and temperature per your preference. This improved precision also helps reduce your energy usage.



Air conditioners can fail when you need them the most. Being proactive with their upkeep is the best way to prevent system failure. Homeowners need to abide by a regular air conditioner tune-up schedule so professionals can conduct thorough inspections and maintenance. Remember to call a professional HVAC technician immediately when repairs are needed. They have the training and experience to find the real source of the problem with excellent results and at reasonable prices.

Tevis Energy’s sister company, Modern Comfort, performs HVAC installations, heating and cooling replacements, tune-ups, and more. Our technicians can provide you with expert HVAC services to ensure that your system provides you with the comfort and efficiency you deserve. Call now to schedule an appointment.

Call Tevis Energy For Your Air Conditioning Requirements

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Tevis Energy provides high-quality HVAC services in central Maryland and southern Pennsylvania. We have the best professionally certified technicians for all your heating and cooling services needs, such as boiler repairs, air conditioning maintenance, ductless installation, and more. All our techs have the skills, knowledge, and experience to service your HVAC system correctly.

Our company guarantees highly affordable HVAC service rates in the area. Our tune-up services can enhance your home’s comfort and energy efficiency while reducing your home’s cooling bills. When you need an HVAC repair or replacement system, we can recommend the most fitting solution within your budget. We back all our work with a guarantee because your satisfaction is our priority. Contact Tevis Energy and book a service appointment today. We offer free, in-home estimates.

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