Any HVAC guys??

[Kawyman]

When pilot is on, valve in on position, TStat jumpers red- then put a jumper on the gas valve where the thermocouple red/white wires are. That’ll show if thermopile is the issue

 

[Kawyman]

What powered the tstat circuit then? It needs power from something.

My guess is it should be a Millivolt TStat. Old school 2wire, could be a battery operated stat. But it’s not getting power from 110, no control boards or set down transformer in that unit.

 

[timtune]

Thanks @Kawyman Jumped the Tstat and the burner kicked on. Really surprised. The new simple (dumb) bimetal tstat doesn't work. What is there to go wrong??
I'm going to re-install the programable stat add new batteries and see what happens??
Question how do I reconnect the programable? I have the two wires coming from the valve and my choices are "Y" "W" "G" "RH" and "RC"
"RC" and "RH" are currently connected with a red jumper wire.

 

[timtune]

There was a section of tstat wire added to run it far enough from the heater (2 sets of marrettes between tstsat and furnace) Reconnected the old programmable tstat deleteing that section and it's working fine now.
Just crappy connections?? (A smart friend says it's usually something simple....)
Regardless I now have heat. Thanks again All!

 

[Kawyman]

Thanks @Kawyman Jumped the Tstat and the burner kicked on. Really surprised. The new simple (dumb) bimetal tstat doesn't work. What is there to go wrong??
I'm going to re-install the programable stat add new batteries and see what happens??
Question how do I reconnect the programable? I have the two wires coming from the valve and my choices are "Y" "W" "G" "RH" and "RC"
"RC" and "RH" are currently connected with a red jumper wire.

R and W for heat,

You can go for either RH or RC if there’s a jumper

 

[timtune]

Thanks again. I have a working furnace.

 

[Kawyman]

Thanks again. I have a working furnace.

Hopefully you won’t need to use it to much longer. Bring on the sun and double digits soon!

Glad its fixed and working now.