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There's a Frigidaire heating and cooling unit in the attic, and the thermostat is a White Rodgers (programmable). Air is blowing, but it is not HOT, though the thermostat is set at a high temperature. I have turned the switch to OFF, but the fan continues to blow. There is another compartment (as the heater lies on its side) that indicates that it's to only be open for servicing. I'm think that there is some sort of RESET button needed. Recently, new insulation was added to the attic. With higher outdoor temperatures is it possible that the it's too hot up there and the continuous running stems from an overheated unit? Step in San Francisco I had my unit installed in May of 2003. Ever since it"s been in there has been a problem. There is a fan that keeps running on the handler. The person that installed it moved away directly after he put it in. All I know about it is that it has " High Efficiency" on the top". It has one of the taller compressers and the other info is against the house. I have had several repair people out , but no one seems to be able to spot the problem. The last company has been out three times to no avail. Now it will not heat at all. Daphene Leggett Lakeland, Florida

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Is this gas or electric heat?

I can help you with all of it, but I need to know where we are working from.

As for the blower running, it's either caused by the Auto-Manual switch being put in Manual, or, there is a time delay for heat shutdown. When the thermostat is satisfied, the blower runs long enough to purge residual heat out of the furnace and ductwork.

Reply back and I will help you out on this.

Posted on Feb 01, 2009

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I do not think the problem is overheating, to test if this is overheating, test the unit stand alone.

Test all the connections to thermostat, it sounds more like a badly connected thermostat.

Posted on Feb 01, 2009

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