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HomeRepair HelpMaytag Central A/C RepairMaytag Central A/C Condensing unit does not run Repair
Maytag Central Air Conditioner Condensing unit does not run
If your Maytag central air conditioner condensing unit does not run, the outdoor AC unit may be completely silent even though the indoor blower operates. The most likely cause is a failed compressor, followed by a faulty wall thermostat, condenser fan motor, or fan motor. A failed compressor can stop the AC condenser from turning on, while seized fan motor bearings can prevent the condensing unit from starting. If the unit has power but neither the compressor nor fan runs, a sealed system problem, low refrigerant, or tripped low-pressure switch may be responsible. A defective high- or low-pressure switch is less common. You can handle basic visual checks and model-specific part identification, but testing or replacing components inside a 240-volt outdoor unit requires serious electrical precautions and may be beyond DIY scope. Refrigerant diagnosis, pressure-switch replacement, and any repair involving the sealed system require EPA 608 certification and a qualified HVAC technician. Enter your Maytag central air conditioner model number to find the exact compressor, condenser fan motor, fan motor, thermostat, or pressure switch for your system. A failed compressor or sealed system can also cause the outside AC unit to stop running entirely.
01 - Maytag Central Air Conditioner Compressor
Central air conditioners use a compressor to pump refrigerant through the condenser coils located in the outside condensing unit and through the evaporator coils mounted on top of the furnace or air handler. While it's not a common problem, if the compressor fails, the condensing unit will not run. You can use a multimeter to test the compressor for electrical continuity, a continuous electrical path present in the component, to help determine if the compressor is faulty. If all other potentially defective components, such as the capacitor and condenser fan motor, are operating properly, then a qualified technician should ...
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Highly Likely
02 - Maytag Central Air Conditioner Wifi Thermostat
The WiFi thermostat has contacts in it that control the furnace. If the contact fails it can result in the furnace and the condensing unit to not run at all.
Common
03 - Maytag Central Air Conditioner Condenser Fan Motor
A faulty condenser fan motor can be responsible for the central air conditioner condensing unit not running. You can use a multimeter to test the fan motor for electrical continuity, a continuous electrical path present in the motor, to help determine if the motor is defective. You can also use the multimeter to determine if power is reaching the motor. You can also try rotating the fan blades by hand. If the blades do not turn freely, it's likely the motor bearings have seized and the fan motor will need to be replaced.
Common
04 - Maytag Central Air Conditioner Fan Motor
A faulty fan motor can be responsible for the central air conditioner condensing unit not running. You can use a multimeter to test the fan motor for electrical continuity, a continuous electrical path present in the motor, to help determine if the motor is defective. You can also use the multimeter to determine if power is reaching the motor. You can also try rotating the fan blades by hand. If the blades do not turn freely, it's likely the motor bearings have seized and the fan motor will need to be replaced.
Common
05 - Sealed system problem
If the condensing unit has power to it, the contactor checks out okay, but the fan and compressor are not running, it is likely that the unit is low on refrigerant which will cause the low limit pressure switch to trip and keep the unit from running. Since diagnosing and repairing a sealed system takes specialized tools and knowledge, a qualified service technician should diagnosis and repair the unit.
Common
06 - Maytag Central Air Conditioner Pressure Switch
A pressure switch is a safety device used to help prevent component and system failures. There are basically three types of pressure switches used in central air conditioning and heat pump applications: High Limit, Low Limit, and Ambient Temperature. Depending on the model, you may have one or more of these or none. The pressure switch(es) can be checked with a multimeter, referencing the wiring diagram for the circuit locations. Note: If a pressure switch needs to be replaced the refrigerant will need to be removed, requiring a qualified technician.
Less Common
Frequently Asked Questions
Why is my Maytag AC condenser not turning on?
What should I check if the Maytag condenser fan is not running?
Can a thermostat or pressure switch keep my Maytag central air conditioner from starting?
How do I know whether the Maytag AC compressor is bad?
How can I find the correct Maytag central air conditioner replacement part?
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