Every once in a while my heat decides that it's too lazy to turn on but without fail it works as good as new the next day, so I figure it's probably a short. Any suggestions on where to look? It's already been a pain in the *** twice and believe me the weather here in ME is not getting any warmer.

 

Is it the fan or the temp. of the air. If it's the temp. it could be the thermostat.