With thermostat on cool condenser fan runs about 5 minutes then shuts down, no cooling inside, I have replaced capacitor and tried a different fan motor. When the thermostat is set to off (between heat and cool) inside 'furnace' blower fan runs constantly, unless I turn the breaker off at the breaker panel
Multiple problems. Eliminate thermostat first. Remove face from wall and turn on breaker. If fan still runs you have a bad board or bad relay. If fan outside is running compressor should be too. These operate on same contactor. Verify you are getting 24 volts to coil side of contactor. If odf stops working and contactor remains pulled in you have a bad motor. If odf motor stops working the compressor will shut off due to overheating.
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Compressor runs, even after fan shuts off.
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SOURCE: Compressor starts and doesn't stop
Relay for the compressor may be stuck ( Contacts welded) both the fan and the compressor should operate at the same time. Have the relay(s) checked and possibly replaced.
SOURCE: AC breaker trips after 10 minutes
Whats the amp breaker? Is this for the inside unit or the outside condenser? If the inside and gas heat you have a bad fan motor, If its an electric furnace , the same, but if its the outside unit, the fan could be going bad, locking up and the compressor still runs and pulls high ampsand tripps breaker or the compressor is just pulling too many amps due to plugged coils with dirt , grass or weeds blocking airflow.([email protected])
SOURCE: Intertherm model MGHA-090-AAPQ -- combustion air keeps running
Sounds like a problem with the circuit board.
SOURCE: RV air conditioner. Compressor running, fan stops before cool
The fan motor is getting hot and going off on the internal overload in the motor.
This is caused by either a low voltage, a bad capacitor, or tight or dry bearings in the motor.
To check the bearings turn the power off to the unit, then spin the fan blade if it spins freely then the bearings are ok.
To check the capacitor you will need some kind of tester or you can buy a capacitor and replace it, that's what a lot of people do. They usually don't cost very much.
To check the voltage you will need a voltmeter and measure the volts at the unit.
SOURCE: air conditioning runs all the time
I assume this is a manufactured home, this is probably a two transformer system, either your contactor is welded in the on positon or wyou have control wiring issues, (could be the thermostat)
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