Having problems with your Air Conditioners ?

My Lennox Air conditioner only heats

\015 It's summer and my Lennox Air Conditioner is stuck in heat mode. It's model #: CHP20R-048 and it worked well last summer and heated well all through the winter. Now summer is coming and it is stuck in heat mode. For some reason it (the heat pump) will not reverse and cool. I just had the unit services about 1 month ago (just a checkup to ensure the compressor, contactors and everything else was in good working order) and it all passed with flying colors. On that day though it was cold and we didn't check the air cooling function, only the heater (which worked great). Any idea's\015

Answers :

It is possible that it's the thermostat. When you turn it into cool mode, does the unit come on at all or is it silent? If nothing is coming on, then it's likely it's the tstat. Did the tech check the refrigerant charge while he was there? He should have checked it with the auxillary heat off and the unit just in heat mode. Make sure that the condenser unit outside is coming on when you are calling for cool, If you turn it on and everything comes on, go outside and put your hand on the large copper pipe coming into the unit. In cool mode, this pipe will be cold to the touch and in heat mode, the pipe will be warm to the touch. There isn't much you can do on your own with the exception of changing the tstat. If you can answer some of the questions I have posed, I can try and give you some more answers. Just remember that a check up doesn't mean its a guarantee that something won't happen the next day, it's just that everything was in working order at the time of the checkup.

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