Blower will not come on
could be the fan relay is bad. or the run capacitor. if these check good. you may have a bad heat sequencer. hard to tell, if you thave a/c you can turn thermostat fan swith to on and if blower comes on then relay and capacitor should be ok. some units have two or three heat sequencers 1 controls fan and the others control heat strips hopefully this helps good luck
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