Our AC is a Trane XE 1000. It was blowing out warm air,so I checked the fan and it was not working. Checked the relay switch and it appears that the rely switch coil is not energizing. Put tape on the relay switch and now I am getting cold air. What could be causing the relay switch coil not to energized? When I remove the tape the fan stops and the blower continue to run.

Could be a bad coil in the relay or could be a lack of power to astivate the relay. Check with meter to discover defective item. Then replace.

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Originally Posted by hvac1000

Could be a bad coil in the relay or could be a lack of power to astivate the relay. Check with meter to discover defective item. Then replace.

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I do not know how to use a voltage meter? Any instructions.

I do not know how to use a voltage meter? Any instructions

Not really. If you don't know how to use a meter then you have a real problem and you would be better served calling for on site professional help.

I cannot give you a education in meter usage but if you do buy a meter it comes with directions. There is also a wiring diagram on the inside of the blower door inside and a drawing on the inside of the access door outside. Good luck.

Quote:

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Originally Posted by hvac1000

I do not know how to use a voltage meter? Any instructions

Not really. If you don't know how to use a meter then you have a real problem and you would be better served calling for on site professional help.

I cannot give you a education in meter usage but if you do buy a meter it comes with directions. There is also a wiring diagram on the inside of the blower door inside and a drawing on the inside of the access door outside. Good luck.

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To my surprise it is working now. Just jingled a couple of wires to the 240 vaults. LHave someone coming over to investigate. Will post results

Good deal.