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Rheem Air conditioner not cooling

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Air Conditioner Not Cooling? Air Conditioner Troubleshooting

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Common solutions for: Rheem Air conditioner not cooling

01 - Rheem Air Conditioner Air Filter
If the air filter is clogged, air cannot flow properly through the air conditioner. This greatly reduces the cooling capacity of the air conditioner. In addition, if the air filter is clogged, the evaporator coils will frost over. To remove debris from the air filter, try cleaning the filter. If it is not possible to clean the air filter, replace it.
Required Part
Air Conditioner Air Filter
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Most Common Solution
02 - Condenser Coils are Dirty
The condenser coils dissipate the heat as the refrigerant passes through the coils. If the condenser coils are dirty, they won’t be able to dissipate the heat as effectively. As debris builds up on the coils, the air conditioner will become less efficient, causing the air conditioner to 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. Check the condenser coils to determine if they are dirty. If the condenser coils are dirty, clean them.
03 - Rheem Air Conditioner Compressor
The compressor might be defective. However, this is not usually the case. Before replacing the compressor, be sure to check more commonly defective components—particularly the overload protector and the compressor capacitor. If the compressor is defective, it should only be replaced by a licensed technician.
Required Part
Air Conditioner Compressor
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Common Solution
04 - Rheem Air Conditioner Control Board
The control board regulates the voltage to the compressor and the fan motor. If the control board fails, some components will not function properly or will not work at all. Control boards are often misdiagnosed; make sure to check more commonly defective parts first before replacing the control board.
Required Part
Air Conditioner Control Board
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Common Solution
05 - Rheem Air Conditioner Main Control Board
The main control board regulates the voltage to the compressor and the fan motor. If the main control board fails, some components will not function properly or will not work at all. Main control boards are often misdiagnosed; make sure to check more commonly defective parts first before replacing the main control board.
Required Part
Air Conditioner Main Control Board
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Common Solution
06 - Rheem Air Conditioner Temperature Control Thermostat
The temperature control thermostat is a sensor which monitors the temperature of the air and activates a switch to provide power to the fan and compressor when the air temperature drops below a set point. If the thermostat isn’t working, the air conditioner will cool continuously or won’t cool at all. To determine if the temperature control thermostat is defective, use a multimeter to test it for continuity. If the thermostat does not have continuity, replace it. (Note: Some thermostats may also... control a heater and, as a result, will have three terminals. Refer to your air conditioner’s wiring diagram for more information.)
Required Part
Air Conditioner Temperature Control Thermostat
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Common Solution

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