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Blower won't shut down

I have a three ton York Heat Pump. I noticed the other day that the blower was running all the time. I tried to turn the t-stat off and the blower still kept running. I called a service man and he came out and checked the system. He said that the fan control board was bad. I had it replaced and the system seemed to work fine for about four days and then today it started doing the same thing again. Whats up with this thing?

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Is the switch on the thermostat set to auto for the fan?

Posted on Apr 15, 2009

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