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ww9830 11-07-2012 10:21 PM

Working on an old Am Standard gas furnace. Had to put in a new circuit board. Now I have the issue of when it heats up the blower fan will not blow BUT when the burner cuts off then the blower starts to blow. What did I do to get that to happen? Need some help on this one...Thanks

carmon 11-07-2012 11:05 PM

not sure..... once the blower comes on does the burner re lite :)

ww9830 11-07-2012 11:43 PM

Blower runs for a bit and then the burner will come back on and then blower again. Never seen this happen before.

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