Forum Discussion

wareagle30's avatar
wareagle30
Explorer
Jan 23, 2015

Furnace Pilot Light Burns Out overnight

Same TT in my other thread "Fridge efficiency advise"

At night, I turn the gas on and light the pilot. It stays lit. I set the tstat, when it calls for heat it blows hot air. All is well.

Wake up the next morning (every night) and its cold in trailer and pilot has flamed out. Why?

Thanks in advance!
  • Hank_MI's avatar
    Hank_MI
    Explorer
    Jan 23, 2015
    Built in energy conserving device?

    Seriously, how big is the pilot flame? Is the thermocouple positioned with the tip centered in the flame? Just guessing, it's colder at night, if right on the edge of keeping it lit in the evening maybe you go over the edge when temps drop. Or maybe the thermocouple is going.
  • dougrainer's avatar
    dougrainer
    Nomad
    Jan 23, 2015
    Usually Bad gas valve, but tighten the Thermocoupler mount on the gas valve first. Should be 5/16 wrench nut. Hopefully you do not have a Coleman furnace. If so, there are no parts and have been no parts for almost 30 years. Doug

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