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Ruud Achiver series Furnace issue

I have a Ruud AC/Furnce that was here when I moved in, so I do not know the model. The problem I'm having is that when the hearter turns on, the gas ignites, but doesn't stay lit, and making it so that the heater never fully turns on. The a/c side and fans work.

Any help you can givre is appreciated.

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  • Ken Bledsoe May 11, 2010

    Does it cycle like 30 seconds or so and goes off?



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Sounds like it may be a bad flame sensor. After the ignition, the flame sensor needs to send 24v back to the gas valve to indicate the the ignition took place. If it does not do this, the gas will shut of as a safety precaution. The flame sensor can often be cleaned up with a piece of sandcloth to fix this problem, or it may be replaced.

Posted on Dec 16, 2008


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