The most common causes of air conditioning failure

If you have spent a hot summer with a broken cooling system, you know that it is a problem worth addressing. Understanding the causes of air conditioning malfunctions can help you identify what is going on, possibly even allowing you to fix or prevent future issues. Here are some common causes of air conditioning failure.

Flipped Breaker

In the case of your air conditioner malfunctioning, you should first check your circuit breakers and fuses. If you need to reset the breaker, give your system 15 minutes to cool down first. If this doesn’t fix the problem, you may have tripped a high-pressure switch. At this point, you will need to contact a licensed technician.

Faulty Thermostat

Incorrect thermostat calibration could mean your air conditioner is not getting the right instructions from the control center. This problem is fairly easy to fix by replacing or recalibrating your thermostats. Check your manual to make sure your thermostat’s settings are correct before calling for a replacement.

Low Refrigerant

Refrigerant is the material that your air conditioner uses to remove the heat and humidity from the air in your home. If your system develops a leak in the refrigerant lines, you won’t have enough refrigerant to effectively cool the air. Unfortunately, because refrigerant is harmful, it is not a matter of replacing it. Any leaks or issues will need to be repaired by an HVAC technician.

Frozen Coils

Your air conditioner’s evaporator coil is filled with refrigerant and is responsible for absorbing the heat from the air like a sponge. When something goes wrong with the airflow and the evaporator coil gets too cold, your coils will freeze.

Clogged Drains

All the moisture that your air conditioner pulls from the air is supposed to be removed from your space through a drain line, into a pan and down into a drain. If the line gets clogged, the water can back up and damage your system.

Fan Problems

While fans do a lot of the heavy lifting in your cooling system, they can be quite delicate. There is a fan that blows indoor air over your unit’s evaporator coil to cool the air, and another that blows air over the outdoor unit’s condenser to expel the absorbed heat outside the building. Whether they’ve suffered a faulty motor, lack of lubrication, worn belts or too much debris, fan issues can lead to compressor issues, and ultimately air conditioning failure.

If you’re sweating due to air conditioning failure, we’re here to help! Contact Service First Heating and Cooling for a quick assessment and repair or your unit.