high limit sensor

  1. doublehorn

    Nordyne / Frigidaire high limit sensor replacement?

    OK all, I have a 2007 Frigidaire furnace that started throwing a 4 blink code, which indicates an open high limit switch according to the manual. So I pulled that switch, measured about 4 ohms of resistance at room temperature, so that all checks out so far. I ordered a new one from Nordyne...
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