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Goodman gas furnace

I have a Janitrol (Goodman) gas furnace. The blower would run all the time. I had the repairman come out a he said it was the control board. My research on-line told me it could be the limit switch. (big price difference). He replaced the board, but I also saw him replace a small wire rod behind the gas burners. It was about 3 inches long and the wire rod was about the diameter of a pencil lead. Was I scammed? Just curious, to late now but I would know not to use them again.
Greg

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Sounds like it coud have been a flame sensor. the limit switch is usually near the top of the heat exchanger.

Posted on Nov 02, 2008

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