? re Duo Therm Furnace - 1968 GT

Bryanhu · 11-21-2003, 03:50 PM

Question.

I light the pilot light, everything is OK. As instructed I turn the same knob to the "on" position. The pilot stays lit - BUT the burner lights up- even when the other knob, the thermostat knob is in the "off" position.

Does anyone know if this is correct? Seems wrong to me. When I turn the thermostat knob higher, the flame stays the same, now this is probably right, I think the actual thernostat cuts the burner off when it gets hot enough- the higher the setting the longer the burner would stay on.... Am I right here?

Any ideas, experience, thoughts, help????? Replacement parts???

Thank you

Bryan

garry · 11-21-2003, 08:23 PM

Sounds like a bad thermostat or shorted wire.

Garry

Bryanhu · 11-21-2003, 08:34 PM

Gary

I would assume you can replace a thermostat? Are they fairly universal? I had the thing apart and it looks like it screws into the gas housing.

Thanks for your response.

Bryan

garry · 11-21-2003, 08:45 PM

Hmmm I was talking about the wall thermostat connects to the furnance with wires. I replaced mine with one from Home Depot compatable with RV furnance.
I have a Suburban and haven't worked on the Duro Therm.
There are several threads on furnace repair. You might do a search and get some good info.

Garry

Bryanhu · 11-21-2003, 08:52 PM

Yeah, mine is as old as the hills! There is no wall thermostat, just one connected underneath the heater. No blower or anything like that.

Thanks