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View Full Version : Thermostat turns on furnace but not the blower motor

ericmac530
Dec 9, 2017, 03:31 PM
Thermostat turns on furnace half but not kicking on blower motor.. this is on a Intertherm Mac 1155
ma0641
Dec 9, 2017, 05:56 PM
Control board or fan ON switch. What happens? Coils come on and..