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Heat pump clicking continuously; lights blinking

My house is all electric, and I have a Ruud heat pump that often has a loud, continuous clicking. The auxiliary light flashes on and off in time with the clicking, and every light in the house also dims. It's like what usually happens when the heat first kicks on, but it just keeps doing it over and over. This sounds like it could really be draining energy (my electric bill is enormous in the winter; reasonable in the summer even though I live in a warm climate and run the AC continuously). The emergency light does NOT come on. I have had the HVAC company here several times to check it out but of course the problem wouldn't happen in the 15 minutes they were there. They checked everything, found no problems, and charged me for a service call. I just know it isn't normal, though. Can anyone help me shed some light on this frustrating problem?

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  • vstokes Dec 29, 2008

    Thank you so much--I'm very grateful for the help!

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I had the same experience. I finally found someone who knew what was wrong. There is a relay switch that is attached to the defrost board. Apparently this is a common problen with RUUD. I had the board replaced and it took care of the problem. It was about $80 for the board and $80 for the service call. Hope this helps.

Posted on Dec 29, 2008

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