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Furance not firing
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September 20, 2011 - 9:19 am
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I have the camper setup in the yard so we can pack for this weekend and the furance makes a clicking noise but NO hot air.  DW isn’t going anywhere if I don’t get this fixed.  Any thoughts?

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September 20, 2011 - 9:39 am
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If the furnace is blowing, but just not blowing hot air, it could be that you have air in the lines.  To rule this out as a problem, just light your stove.  It will likely take a few tries if this is the problem.  Run it for a good minute or so, turn it off, then try again with your furnace.  Typical symptoms of this type of problem is your furnace blower will turn on, you’ll hear the click-click-click of it trying to light, then it’ll give up at some point and the blower will turn off.  It’s possible you’ll need to hit a reset switch inside the furnace’s cover and/or turn the thermostat’s switch off, but I don’t recall exactly.

Additionally, there’s a safety device in somewhere in the LP system (I swear my manual said it was in my regulator, but others have said it’s in the LP bottles themselves) which only trickles the gas out until if senses some back-pressure.  At that point, the safety device opens up and allows full LP flow.  This usually becomes an issue when swapping LP bottles after running out, or if the camper has sat for a while with the gas turned off at the LP bottle.  I’d recommend turning on your LP bottle, let it sit for up to five minutes, then using your gas appliances.  If you try to light your stove, and it goes out or barely stays lit, that’s usually a symptom of this.  Your furnace will have similar problems that what I described above if there’s not enough gas flowing through the system.

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September 20, 2011 - 11:13 am
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The other condition that will cause this problem is if the fan is not up to full speed – sail switch. This usually happens with not getting full 12 V. If you are on battery, try it with the converter plugged in.

Martini Glass The happiest people don't have the best of everything, they just make the best of everything that they have!
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September 23, 2011 - 9:53 am
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We had that problem a few years ago and it turned out the propane line to furnace had been crimped during manufacture – take a look at the line and make sure it looks ok.

We had another problem a few years later (with a different camper) – that turned out to be that the wire from the therostat had broken off – had to re-wire the thermostat.

Hope it doesn’t take you to long to find the problem.

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October 3, 2011 - 1:37 pm
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We had this problem, it was the reset switch behind the furnace cover.

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October 5, 2011 - 1:48 pm
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The furnace wasn’t working over last weekend.  The propane is great to the stove and refrig.  The thermostat turns on and the temp setting is fine.  The blower kicks on and blows an agressive [glow=blue,2,300]cold[/glow] air.  I hear the ignitor clicking but it doesn’t light.  I have printed the manual and read thru some threads, hope to figure out what to check and get it fixed over this coming weekend.

https://canvascampers.com/index.php?action=dldir;sa=list;id=18

JoeCamper, EwwwBugs, 4 kids, 2dogs and whatever else fits in my truck.
04 Dodge Ram 1500, 2010 Coleman Avalon

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