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Author Topic: RV furnace broke  (Read 5043 times)

Offline Jim/WA

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Re: RV furnace broke
« Reply #15 on: August 02, 2017, 07:06:39 AM »
I just ordered a new relay board for my ac unit. In my case, my fan runs even when the thermostat is "off". It doesn't respond to any of the controls so neither the ac compressor or furnace will come on. The only way to shut it down is by switching the breaker off. Your's could just as easily be a relay either stuck in the off position or blown altogether.

Offline birddogdad

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Re: RV furnace broke
« Reply #16 on: August 02, 2017, 07:13:28 AM »
my fathers camper has heater failed a couple times over 15 years, each time turns out to be ckt board issue. Most RV places will replace and groom the new boards. I just dropped off the heater, which comes out easily. Cap off your gas line and camper still works fine for summer camping till it is fixed.
USN retired
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Offline Lingcod

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Re: RV furnace broke
« Reply #17 on: August 02, 2017, 07:34:09 PM »
My camper is brand new and heat won't kick on either, but I'm not too worried about it because the temp is so hot in there, it's way above max setting on the thermostat, I'm sure once it cools down outside it will kick on. I'm not saying that's your issue but maybe.
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Offline Ridgeratt

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Re: RV furnace broke
« Reply #18 on: August 02, 2017, 07:37:44 PM »
Not sure what the heat exchanger is in your I have one that has a cast iron exchanger and with the moisture in Propane after a while it ends up with rust in it so has to be removed and shaken out. Once it's clear runs like a champ.

Offline bowNarrow

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Re: RV furnace broke
« Reply #19 on: August 02, 2017, 07:38:31 PM »
Typically a thermostat is only 2 wires on a rv. You could remove the stat and just tie the wires together and see if that works to eliminate the stat as the problem

Online Bofire

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Re: RV furnace broke
« Reply #20 on: August 02, 2017, 07:41:22 PM »
 :) did you remember the switch on the bottom of the thermostat? My Nash has one, it is a master off/on switch. Nothing works if it is not on, My wife forgot about it once.
Carl
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Online sagerat

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Re: RV furnace broke
« Reply #21 on: August 04, 2017, 09:18:02 AM »
Thanks for all the ideas. Now I need to find time to dig into it.

Offline baker5150

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Re: RV furnace broke
« Reply #22 on: August 04, 2017, 09:38:04 AM »
Not sure what the heat exchanger is in your I have one that has a cast iron exchanger and with the moisture in Propane after a while it ends up with rust in it so has to be removed and shaken out. Once it's clear runs like a champ.

That is scary, please make sure you have a CO detector in your RV that works.


Offline Miles

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Re: RV furnace broke
« Reply #23 on: August 05, 2017, 08:53:31 AM »
Typically a thermostat is only 2 wires on a rv. You could remove the stat and just tie the wires together and see if that works to eliminate the stat as the problem

You don't have to remove the wires...  Take a pair of needle nose pliers and hold one end of each jaw on the terminal screws.  This will jump it.  If it turns on, you have a bad thermostat.

Offline sled

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Re: RV furnace broke
« Reply #24 on: August 05, 2017, 09:38:32 AM »
 
Sale switch?
:yeah:  that's what my problem was!

Offline ryan8888

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Re: RV furnace broke
« Reply #25 on: August 15, 2017, 07:04:30 PM »
Airflow switches rarely fail. Check tubing to switch and that heat exchanger isn't cracked.

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Offline BNAElkhntr

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Re: RV furnace broke
« Reply #26 on: August 15, 2017, 07:43:56 PM »
Is your ac and Furnace controlled from same tstat? if so they might be linked thru Air conditioner relay if so when furnace calls  for heat it senses thru Ac then Ac will send signal to Furnace    my unit actually you hear click of ac when furnace I turned on  :twocents: 

Offline wapiti22

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Re: RV furnace broke
« Reply #27 on: September 09, 2017, 06:07:27 PM »
Check all the electrical ground connection. They corrode over time. When my heater doesn't start it's usually the ground on the ckt board that needs cleaning.

 

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