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Air conditioner/furnace was working for the past few months. Came home today at it is at 81 degrees, although my set temperature was set at 72 degrees. Temperature is rising to 83 degrees and I can't figure out why the air conditioner won't run properly. I turned the fan on from auto to on and it's blowing warm air. The default scree on reads the current temperature at 82 degrees with a circle and snow flake above it and an downward arrow where the word room is written. Any suggestions? I tried shutting off the furnace and turning it back on but nothing changed.

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Check outside breakers. Open up outside panel and see if contactor is pulled in. If so you have a voltage problem or a bad capacitor. Sometimes a wire burns off. So look for this. If you have a float switch on the inside unit it may be tripped. Stopped up drain. Russ

Posted on Jul 31, 2009

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