Gas and Oil Home Heating Furnaces - no heat on gmc

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billylions
11-06-04, 10:27 AM
when i turn the heat on,it comes on at the unit but fan doesn't. everything works fine on air.model pgb030075-1. and it's gas
gmc.

Ed Imeduc
11-06-04, 11:21 AM
What furnace and AC do you have there . We need INFO INFO then some one can try and help you,

ED ;)
hvac4u
11-06-04, 06:25 PM
try fan in on position, that may help

to determine if it is the fan or board/relay, we need to know if voltage is present to the fan wire normally energized in heat