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Question

The AC fan in the house has stopped working. It does not turn on any more, not even when I change the fan setting from Auto to On. The AC unit outside the house comes on just fine. Any idea what is going on?

Submitted: 133 days and 6 hours ago.

Category: HVAC

Value: $9

Status: CLOSED

Hello,

It could be the fan itself, or the control relay inside the AHU, or ( Very remote) is the fan relay contact of the thermostat.

If it is the fan itself, It could be the windings, or the capacitor, or the bushings of the fan motor.

You can verify this by going near the AHU and as someone turn on the thermostat, observe if you can hear a humming sound inside the Air Handling.

Accepts:
Expert:	Drcool
Pos. Feedback:	96.2 %
Answered:	7/12/2009

HVAC Technician

i have been an A/C tech for the past 12 Years. working on window types, split type, and package

133 days and 1 hours ago.

Reply

Thank you! Followed your instructions. There was a humming sound at the fan motor unit. Called an A/C techninician. Problem turned out to be a capcitor.

Incidentally, you need to stop using tech terms such as AHU for average John Q Public. I had to do Google search to find out what it stands for.

Posted by Drcool 132 days and 21 hours ago.

Answer

Hello,

I am sorry if I used that term. But I am glad you were able to fix your problem.

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Question

The AC fan in the house has stopped working. It does not turn on any more, not even when I change the fan setting from Auto to On. The AC unit outside the house comes on just fine. Any idea what is going on?

Accepted Answer

Reply

Thank you! Followed your instructions. There was a humming sound at the fan motor unit. Called an A/C techninician. Problem turned out to be a capcitor.

Incidentally, you need to stop using tech terms such as AHU for average John Q Public. I had to do Google search to find out what it stands for.

Answer

Hello,

I am sorry if I used that term. But I am glad you were able to fix your problem.

HVAC

Have your own HVAC question?

Related Hvac Topics:

Question

The AC fan in the house has stopped working. It does not turn on any more, not even when I change the fan setting from Auto to On. The AC unit outside the house comes on just fine. Any idea what is going on?

Accepted Answer

Reply

Thank you! Followed your instructions. There was a humming sound at the fan motor unit. Called an A/C techninician. Problem turned out to be a capcitor. Incidentally, you need to stop using tech terms such as AHU for average John Q Public. I had to do Google search to find out what it stands for.

Answer

Hello,I am sorry if I used that term. But I am glad you were able to fix your problem.

Related HVAC Questions

Thank you! Followed your instructions. There was a humming sound at the fan motor unit. Called an A/C techninician. Problem turned out to be a capcitor.

Incidentally, you need to stop using tech terms such as AHU for average John Q Public. I had to do Google search to find out what it stands for.

Hello,

I am sorry if I used that term. But I am glad you were able to fix your problem.