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Old 08-15-2013, 10:47 AM   #1
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Question Furnace Off and On

I own a 2000 30' Jayco Quest. My wife tried turning up the heat the other night and the furnace went through several cycles of turning on for 3 seconds and then immediately off. The blower and heat only stays on for a few seconds, then off. It repeats this every 30 seconds or so.

I removed the cover and used an air compressor to clean out the exhaust and furnace itself, however it did not fix the issue. I am now suspecting it may be the circuit board, or the thermostat perhaps? Does anyone have any suggestions or tricks to figuring out what the issue may be? I call a local repair shop, and he advised it would be $349 for a new circuit board. Any suggestions or help would be appreciated.

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Old 08-15-2013, 01:45 PM   #2
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Make sure you have propane getting to the furnace.
Make sure your burners on stove light, hot water heater if you have one and frig if it runs off propane.


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Old 08-15-2013, 10:02 PM   #3
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You might also check for wasp or dauber nests in the furnace compartment. Those can restrict the flow of propane.

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Old 08-16-2013, 01:23 AM   #4
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Do you see a flashing led light in the furnace? The number of flashes corresponds to what the problem is. Mine has a little sticker inside the furnace telling what the number of flashes means.
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Old 08-19-2013, 05:41 AM   #5
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Thanks all!

I will have a look this evening and see if I can figure this out.
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