Home AC Fan not working

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  #1  
Old 08-03-19, 02:32 PM
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Home AC Fan not working

Hello,
I'm hoping someone here can help me out. I have an American Standard AC Unit. My AC System will blow cold air for about 15 and then my condenser fan shuts off. I can hear the condenser running and air still blows inside my home only now it is warm air. Ive replaced several items which include:
- Both Capacitors
- Contactor
- Fan Motor
- Termostat
- fan on/off relay
I checked the coils and appear to be fine. I'm not sure what else it could be.
Any help will be appreciated.
Thanks in Advance
 
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  #2  
Old 08-03-19, 02:40 PM
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Welcome to the forums.

The condenser has two parts..... the compressor and the fan.
Are you saying the compressor keeps running but the fan shuts off ?
Why did you replace the condenser fan ?
Are you sure you used an appropriate replacement ?
The capacitor value must match the value stated on the fan motor.

You need to make sure the 240v to the fan is present. If it is..... it sounds like the motor is overheating and shutting down on thermal overload/high heat.

If this is a heat pump system..... there will be a defrost board that can control the fan.
 
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Old 08-04-19, 08:33 AM
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Yes , the compressor keeps running but the fan shuts off after 15 min. At that point nothing but warm air comes out the vents. I replaced the condenser fan because the old one would start to make a loud noise after running for 10 minutes and the it would shut off. I figured it was my fan going bad so I replaced it. I did get the right replacement motor.
I will definitely check to make sure I'm getting 240V to the fan.
Thank you for responding to my question
 
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