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AC fan not working

I had a 3 1/2 ton split unit Intertherm. Not sure of the model number. The outside fan is not working. I hear a humming noise and the unit is warm to the touch. I turned the unit off and waited 5 minutes then turned it back on and the ac worked and the fan was running. After about 5 minutes it stopped again and is making a squealing noise. Any advice before calling a repair man??

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Dont run it until the problem is fixed..

The humming is the compressor.. With out the fan - it will get damaged..

The first thing I would try is replace the capacitor.. Be sure power is off !!
This scenario is tipical of the capacitor..

Its metal & looks kinda like a can & has 3 wire conections at the top..

Be careful to not mix up the wire sequence..
Change one wire at a time and be sure..

Also - you mentioned sweeking.. Its also possable that the fan motor is failing..

But a copasitor is cheeper than a fan motor - and makes the most sense to replace..

Hope this helps !!
Please rate me good ;o)

Posted on Jul 11, 2009

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Turn it off call repairman

Posted on Jul 11, 2009

  • taa43 Jul 12, 2009

    good luck finding a capacitor if you don't know what your doing U could get hurt save your self get a service tec some things left best to experts. turn off the power before U do anything. Tom

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