EPDM Coatings
rvupgradestore.com Composet Products
RV Life Magazine RV Park Reviews RV Trip Wizard

Author Topic: Propane furnaces stopped working  (Read 434 times)

Laura & Charles

  • ---
  • Posts: 72
Propane furnaces stopped working
« on: January 31, 2018, 06:54:59 PM »
Weíve been using our propane furnaces at night lately. Turned everything off at thermostat while we left the coach for several days of touring/sightseeing. Returned yesterday and turned thermostat to Ďheatí and set to Ďgasí and nothing. No fan, no click... nothing. Switched to Ďelecí and both heat pumps kicked on just fine.
Have plenty of propane, stove lights fine. Both water heater and refer fire up when set to gas.
Since issue is with both furnaces, Iím thinking it must be electrical, but donít know where to start looking. I found a 5A fuse for the thermostat, but itís fine (and controls the functioning of the heat pumps, too... so obviously not that).  Is there another fuse or breaker just for (both) furnaces?
« Last Edit: January 31, 2018, 06:56:40 PM by LauraCharles »
Living and working full-time out of a:
2011 Fleetwood Pace Arrow 38P; W24 chassis; 8.1 Vortec
and dinghy towing a 2009 Saturn Vue.

HueyPilotVN

  • ---
  • Posts: 1461
Re: Propane furnaces stopped working
« Reply #1 on: January 31, 2018, 07:37:13 PM »
If you have Atwood furnaces they have a circuit breaker on the backside behind the outside cover.

Remove the four phillips screws and you will see the breaker.  Both of my furnaces quit with the same symptoms that you described.  Someone had replaced the breaker with a fuse in the past.  Both fuses were open and after replacing them the furnaces ran fine.

Good Luck.
« Last Edit: January 31, 2018, 07:47:34 PM by HueyPilotVN »
Bill Waugh
40' Country Coach DP
2 Jeep Commanders
Mustang Bracket Race Car
Retired from the road to Lake Havasu after 35 years on the road

HueyPilotVN

  • ---
  • Posts: 1461
Re: Propane furnaces stopped working
« Reply #2 on: January 31, 2018, 08:03:06 PM »
I just went out and took some pictures of one of the furnaces in the garage.

The original wiring has a switch, (must be a service switch) that disconnects the breaker from power.  The breaker is just to the right of the switch and normally is in the circuit.

What I found is that it had been bypassed with a 15 amp fuse.

I am not sure why this was done or by who.

My simple fix was to replace the fuse as it had obviously worked for at least the last 5 years that I have had this RV.
Bill Waugh
40' Country Coach DP
2 Jeep Commanders
Mustang Bracket Race Car
Retired from the road to Lake Havasu after 35 years on the road

Laura & Charles

  • ---
  • Posts: 72
Re: Propane furnaces stopped working
« Reply #3 on: January 31, 2018, 08:24:42 PM »
Problem solved. Turns out thereís a 20A fuse (labeled Ďgeneral purpose Ď) that feeds both propane furnaces.
Allís well (until next crisis ... or until it keeps blowing and I have to dig deeper... itís holding so far so fingers crossed. 👌)
Thanks for the replies!!
« Last Edit: February 01, 2018, 12:55:12 AM by LauraCharles »
Living and working full-time out of a:
2011 Fleetwood Pace Arrow 38P; W24 chassis; 8.1 Vortec
and dinghy towing a 2009 Saturn Vue.

John From Detroit

  • ---
  • Posts: 21015
  • ^My New Home^
    • Diabetics Forum
Re: Propane furnaces stopped working
« Reply #4 on: February 01, 2018, 09:54:25 AM »
Some generic invo on fuses..

A fuse is a relatively SMALL piece of wire housed in a housing that is designed to contain the molten wire should it blow.

However vibration can cause the fuse to fail.  The end caps on a glass cartridge are soldered, not welded and on a blade type though I think they are welded the wire can still vibrate and fail.   So Fuses fail. for no apparent reason other than "old age".

So if one blows... Replace it. IF THAT ONE BLOWS. quickly. You have a problem

Recommendation: Buy a fuse assortment at your favorite Auto parts Store.  I have the big "Shop" size box.
Nothing adds excitement like something that is none of your business
My Home is where I park it.

Laura & Charles

  • ---
  • Posts: 72
Re: Propane furnaces stopped working
« Reply #5 on: February 01, 2018, 05:14:37 PM »
Thanks... have already stocked up with several of each variety of what our coach has.
Living and working full-time out of a:
2011 Fleetwood Pace Arrow 38P; W24 chassis; 8.1 Vortec
and dinghy towing a 2009 Saturn Vue.