Why Isn’t Your Home Cooling Down?

Attics and Ceilings

Your air conditioning fails to cool despite keeping it on for long hours. What is the matter? We’ll help you figure out why your ac is not working.

  1. Air filter

If your air conditioner is not cooling, it might be because your air filter is clogged. In such a case, air cannot flow through properly. This greatly reduces the cooling capacity of the air conditioner.

What to do: Either clean the air filter or replace it as needed

  1. Dirty condenser coils

Condenser coils dissipate heat as the refrigerant passes through. If condenser coils are dirty, they won’t be able to dissipate heat as efficiently. As debris builds up on the coils, the air conditioner will become less efficient, which in turn will make it work harder to cool down. If the coils are significantly dirty, the air conditioner will not be able to maintain the proper temperature, and the compressor will run continuously in an attempt to cool the room.
What to do: Check the condenser coils to determine if they are dirty. If the condenser coils are dirty, clean them.

  1. Compressor

The compressor might be defective. However, this is not usually the case. Before replacing the compressor, be sure to check the more commonly defective components such as the overload protector and the compressor capacitor.

What to do: If the compressor is defective, it should only be replaced by a licensed technician.

  1. Thermostat

This device monitors the temperature of the air in the room. When the temperature rises above a certain point, the thermostat activates a switch to provide power to the fan and compressor. The thermostat may not cool properly if it is defective.

What to do: To determine if the thermostat is defective, set the air conditioner to cooling and then use a multi-meter to test the thermostat for continuity. If the thermostat does not have continuity while the air conditioner is set to cooling, replace the thermostat.

  1. High atmospheric temperature

An AC has an optimum operating temperature at which it can work most effectively. If the temperature shoots up beyond the optimum temperature limit, the efficiency of the air conditioner goes down. Sometime when it is so hot outside, it reaches a stage where the compressor stops working completely.

What to do: Sit tight and have a professional look at your AC.

  1. Control board

The control board regulates the voltage to the compressor motor and the fan motor. If the control board fails, other components will not function properly or will not work at all. Control boards are often misdiagnosed. Make sure you check the parts more prone to defects before replacing the control board.

What to do: If you are certain that all of the other components are working properly, replace the control board.

Carry out regular HVAC inspections or maintenance checks on your air conditioning so that it does not die down during the hot summers. Contact a professional if you do not know how to carry out a HVAC inspection by your own.