Air Conditioning - Help with Central air fan running slow.

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Briora
06-29-09, 02:57 PM
I have a goodman central air unit CK36-1A. The other day I noticed the fan on the outside unit was not running and the unit was hot and seemed louder than usual. It took the fan out and noticed that one of the wires (brown) to the fan had been nicked by the fan. I cut out the nick spliced the wire back together, and taped them to the inside of the unit so they would not get knocked again and when I started the unit the fan was running slower than normal so so I shut it down. It seems to me like I am only getting 110 instead of 220. What should I be looking for to try and repair.

Thanks!!

Brian


daddyjohn
06-29-09, 03:25 PM
are you testing across the hot legs or each leg to ground? Is another wire nicked or broken under the insulation? Does the fan motor have 3 wires? How do they ohm out?

Briora
06-29-09, 03:35 PM
I just tested the ohms on the 3 wire comming out of the capacitor to the fan Black and Purple are strong with thennedle going almost all the way up, i am getting very little, not much at all from the brown wire. The diagram on the fan show that Black are Purple are line and the Brown says "Sep Cap.) a shows it connecting to the purple. Although there is no actual connection that I can see.


daddyjohn
06-29-09, 04:21 PM
you have the wires separtaed and not connected to anything else? The brown is the start winding it goes to the cap by itself on the F side, Cut and strip the brown close to the motor but leave enough to reconnect the wires. Test the motor again and continuity test the brown wire.

Briora
06-29-09, 04:39 PM
I cut the wire from the capacitor to the fan so I could remove ithem. I test the bare end of the wires and recieved the ohm rating that I mentioned earlier.

daddyjohn
06-29-09, 04:42 PM
how close to the motor did you cut? do you have YM and a webcam?

Briora
06-29-09, 05:55 PM
John- Thanks for all of your help. I'm not sure what happened but I lust hooked the fan back up for the heck of it and it working fine!! All I did was take it out last week, took apart the motor to see if I could find anything and put it back together. Not sure what the issue was but I hope it holds. The only thin I can think was the terminal on the capacitor that the brown wire was connected to was bent a little, probably due to the force of the wire getting hit by the fan? I straighten out the termimal and made sure the connection was secure. Maybe the connection was a little loose from being pulled. Not sure but my house is cooling off now. Thanks again for your help, I just found this site today while I was researching this issue and it';s a great resource. Especially when good people take the time to offer a little advice.

daddyjohn
06-29-09, 06:47 PM
you're welcome. I've got my fingers crossed- he he