Furnace problem

[tigger319]

I have a 2016 Winnebago Adventurer. Have had weather last night that reached 20 degrees, currently 29 degrees. Can’t get my furnace to kick on. It has power but I think the propane isn’t getting through. Any suggestions as to how to fix this?

[dabrooks]

See if you can get a stove burner to light. If not the regulator may be frozen. You can warm that up with a hair dryer.

[ArtJoyce]

Do you have it turn on on the thermostats, set to heat and set to a high temp?

What is your furance doing? Does the fan come on?

[Gary RVRoamer]

At those temperatures, the propane may not evaporate fast enough to supply the furnace. Especially if the propane (actually LPG) has a high butane content, cause butane has a higher boiling point. LPG sold in warn climates often has a percentage of butane blended in. Keeping the tank and regulator warmer would help if that's it.

[rk911]

ummm...do you have propane in the tank?

[Skip Y]

If you've proven that you are getting propane by doing the steps above. Here's some possibilities:
1) you say you have power. Does that mean you're plugged in to shore power, or that your on batteries and the blower is running. The blower must have enough power to move enuf air to 'make' the sail switch. If not, the safety system will not allow the igniter to energize and the gas valve to open
2)If all above is OK, is the igniter gap correct? Should be about 1/16 to 1/8"
3) If still OK, is the thermocouple responding? If furnace lights (go outside and listen) then shuts off, the T/C is probably bad. Easy to replace (but not fun when it's 20 deg out)
4) Still no luck, most likely the control board has failed.

[Old-Biscuit]

Brand/Model of furnace???


Does the FAN come on??

No Fan...NOTHING will happen
No Fan...NO DC Power

[swagn]

I was getting ready to offer advice but then I saw the "DR" is in...nothing to add here that Ol Biscuit is on the case...He's taught me and many of us well...