Question about Ruud Handler Air Conditioner

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My Blower Turns itself on when it is not supposed to.

I have a Ruud 14 Seer AC and air handler that was installed in September 2006. My home has baseboard heating. Since the system was installed, the air handler comes on by itself, with the heat on or even with the thermostat set to off. I have had numerous service calls and various parts have been replaced including the thermostat and the circuit board, but this problem keep happening and it results in cold outside air blowing through my house when it is cold outside. The AC compressor never comes on, just the blower turns on. No one has been able to help. Has anyone heard of this and is there any solution? I am almost ready to just rip the whole system out I am getting so frustrated!

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If your indoor unit is located in the attic, you may be experiencing the result of a high temperature safety device (possibly too sensitive) that is responding to warm air drifting up the return air duct. The function of this device is to turn on the fan at a given set point and cool the unit back down. Have someone identify your limit rating and change the limit device with one rated the same or see if the maker of the unit has an upgrade/service bulletin on this fault.

Posted on May 03, 2008

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