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Ruud Air conditioner compressor won't run

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Air Conditioner Compressor Won't Run? Air Conditioner Troubleshooting

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Common solutions for: Ruud Air conditioner compressor won't run

01 - Ruud Air Conditioner Temperature Control Board
The temperature control board provides voltage to the fan motor and compressor. If the control board is defective, it may stop providing voltage to the compressor. Control boards are often misdiagnosed. Before replacing the temperature control board, make sure you check more commonly defective parts—particularly the compressor overload, capacitor and the compressor itself. If you are certain that all of the other components are working properly, replace the temperature control board.
Required Part
Air Conditioner Temperature Control Board
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Most Common Solution
02 - Ruud Air Conditioner Temperature Control Thermostat
The temperature control thermostat has electrical contacts inside that burn out over time. It is possible for the thermostat to still turn on the fan motor but not the compressor motor.
Required Part
Air Conditioner Temperature Control Thermostat
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Most Common Solution
03 - Ruud Air Conditioner Thermostat
The thermostat monitors the temperature of the air. When the air temperature rises above a set point, the thermostat activates a switch to provide power to the fan and compressor. If the thermostat is defective, it may prevent the compressor from running. If you determine that the compressor is at fault, replace it.
Required Part
Air Conditioner Thermostat
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Most Common Solution
04 - Ruud Air Conditioner Compressor
The compressor itself 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
05 - Ruud Air Conditioner Overload
The overload protects the compressor from burning out if it draws too much current. Over time, the overload can burn out. To determine if the overload is burned out, use a multimeter to test the overload for continuity. If the overload does not have continuity, replace it.
Required Part
Air Conditioner Overload
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Common Solution
06 - Ruud Air Conditioner Main Control Board
The main control board provides voltage to all of the components of the air conditioner. If there is a problem with the main control board, it might not send voltage to the compressor. However, this is rarely the case. Before replacing the board, make sure you check more commonly defective components—particularly the overload protector, compressor capacitor, and the compressor itself. If you are certain that all of the other components are working properly, replace the main control board.
Required Part
Air Conditioner Main Control Board
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Common Solution

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