A/C Compressor And Fan Not Turning On. - HVAC - DIY Chatroom Home Improvement Forum

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Old 06-05-2010, 06:56 PM   #1
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A/C Compressor and fan not turning on.

Noticed an hour ago or so that the A/C was turned on but that the outside fan was not running and air coming out of the vents was not cold. Checked all the breakers, all were on. Tried to give the fan a little jig with a stick and nothing. Turned thermostat to off, and reset all the breakers and nothing. When I turned everything back on I noticed that when I turned the thermostat on, I could hear a click out at the compressor and then nothing happened. I checked the temperature by touch out there and it wasn't hot or anything?

Any ideas? I'm thinking maybe fan motor? And the click is trying to start it and failing?


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Old 06-05-2010, 08:08 PM   #2
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Need to turn on the a/c and go out to the condenser and check if the compressor is running. If it is shut off the a/c

Next we need to determine if the condenser fan motor or the condenser fan motor capacitor is bad.

If both the fan motor and compressor is not working then more than likely you have a dual capacitor that has gone bad


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Last edited by Plumber101; 06-05-2010 at 08:15 PM.
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Old 06-05-2010, 10:27 PM   #3
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When I turn on the A/C I hear a click and then nothing else so I'm assuming the condenser isn't running. I do hear a low electrical hum from the unit.

Last edited by rpond; 06-05-2010 at 10:42 PM.
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Old 06-05-2010, 11:22 PM   #4
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Check you 220 going into and out of your contactor
Had one the other day the dissconect was fried and no 220 going to contactor, I fixed it only to get a call the next day that the fan was humming and not turning, figured the drag on the fan drew high amps to melt the dissconect.
If you hav 220 it sounds like the duel ran cap.
Some times you can get the fan to start turning by helping it with a pencil.
Also watch out for a direct short, if there is no ground it could be lights out for you, we lost a boy in ga a few years ago because of no ground.

Last edited by mikethe ductman; 06-05-2010 at 11:28 PM.
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ac compressor fan

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