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My Goodman furnance blowing cold air.I have 4 LED flashing lights

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Reset the power to see if the furnace tries to light. If it tries & fails, it is an ignition issue ie hot surface igniter, dirty flame sensor. If the LED's still are lit up, it is most likely a limit that is open.

Posted on Mar 21, 2015

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Posted on Jan 02, 2017

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