Flaky Furnace Thermostat
I have a Suburban gas furnace in my 4-year old 5th-wheel. The thermostat name on the front panel is "RVComfort.HP". When heating on propane only (that is, not using the heat pump), four times in the p...
Forum Discussion
sayoung wrote:
Check the 4wire bundle, red 12+ & the White is furnace. The 3 wire bundle does the fan speeds & the HP reversing valve. If mfg followed colemans specs for OEM install.
Are you referring to wire bundles up at the air conditioner?
I ask because the 3 wire bundle at the tstat connects to tstat terminals identified as +12 vdc, -12 vdc, and Furnace. The 3 wire bundle is all about the furnace. It's the 4 wire bundle that goes to the AC/heat pump.
I think we might be rehashing ground already covered. I believe I've proven that to turn on the furnace, the OEM tstat connects the red +12 vdc wire to the white "Furnace" wire - both of which are in a 3-wire bundle at the tstat. I think I just need to find a new tstat that will do the same thing - allowing me to move furnace control from the OEM tstat to the new tstat.
Getting ready to head south tomorrow so I may have to put this on hold until we get to S. Cal.
Thanks
