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Furnace not working. ok light flashing - Heating & Cooling

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I take it we are talking a furnace/blower with a burner and compressor located else where?

22yooper is correct on the 'brain" in many units as described above, the flashing light will indicate a code, however I have a White Rodgers, which I did a Frankenstein number on to get my furnace working, and the green light is "normal when flashing", and the instructions on time between flashes for a code are there, but very hard to determine.

But 22yooper is exactly correct on I would say a majority of stand alone blower units with "A": coil, burner, and separate compressor.

We are talking a furnace, not an air conditioner, which produces only cool air?

Will

Posted on Dec 02, 2008

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The flashing light indicates that there is a problem. Turn off the power and then back on. Count the flashes and it will indicate the code to the problem. There will be a time pause between the flash codes. The most common problem is the failure of the hot surface igniter .

Posted on Dec 02, 2008

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