AC doesn't turn off at set temperature

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AC doesn't turn off at set temperature

Postby subzerooosss » Wed Sep 14, 2011 10:04 am

I had an old mercury based thermostat from honey well. For the past few weeks the AC was running continuously without stopping at the set temperature. I suspected the thermostat has gone bad. Replaced it with a new digital honey well pro 2000. But still have the same problem. The AC is still running continuously and doesn't turn off at the set temperature. Is this a problem with the AC unit or thermostat or wiring? Thanks.
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- AC doesn't turn off at set temperature

Postby heatseeker » Wed Sep 14, 2011 10:23 am

you have problem somewhere in unit not t-stat
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- AC doesn't turn off at set temperature

Postby subzerooosss » Wed Sep 14, 2011 10:35 am

Any idea where and what the problem could be? Thanks.
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- AC doesn't turn off at set temperature

Postby heatseeker » Wed Sep 14, 2011 2:30 pm

could be a stuck contactor or shorted control wire.
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- AC doesn't turn off at set temperature

Postby Heating UP » Fri Sep 16, 2011 12:36 am

My guess is that there is a short in your control panel somewhere. Make sure all the soldering is correct.
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- AC doesn't turn off at set temperature

Postby metalman » Tue Sep 20, 2011 8:13 am

I found a lot of help here. look at problem #4 . **/troubleshooting_air_conditioning_problems.htm
Ok, I see the link has been altered to remove the name of the company. To bad, lot of info there but I understand why.
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