Quote:
Originally Posted by prsmith
Help and thanks,
Preston (waiting out a snow storm on I-81 at Falling Waters RV park at Exit 23 in West Virginia
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prsmith, We were having the exact same problem with our furnace. The diagnosis was a bad thermostat.
Remove the shell on the T-Stat. Look at the slider switch and see if it has any perpendicular movement at all. I did and I found mine was loose. Push the button toward the circuit board (with your thumb) while in the OFF position "Gently but firmly" and see if the switch moves at all.
Taking 2 fingers slide the switch to the furnace position and center the switch over the furnace position as much as possible and wobble it over the detent position. Hopefully the furnace will fire.
We woke up in 25° weather with no heat one day while on the road a few weeks ago. The tech came into the rig. Centered the switch using the method I described and the furnace worked for a week. I never touched the button again, just adjusted the temp up or down.
Now if the furnace starts running and stays running you got it made. I wish you good luck - ain't easy getting a T-Stat but not impossible.
When I got home and checked to see if it was a fluke - the furnace kicked on but didn't fire for what seemed like 3 minutes or so but then the burner kicked in.
When you move the switch from OFF to Furnace you should hear a relay "click" in. The click will be brief but you need to hear it. Without that audible click - I don't expect the furnace will fire.
We had 2 electric space heaters .... they couldn't keep up, we froze.