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thetundrawolf's avatar
thetundrawolf
Explorer
Jan 10, 2020

Duo Therm 65900-001 sparking but not lighting?

Hi, I have an older trailer with a Duo Therm 65900-001 furnace, it's getting propane fine, and 120v, when I connect the thermostat wires the fan comes on, and it sparks, I hear the solenoids in the pr...
Roger10378's avatar
Roger10378
Explorer II
Jan 10, 2020
Probably a spider web in the burner tube. You wouldn't hear the gas valve if the sail switch was not working.

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