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Old 05-23-2013, 02:42 PM   #1
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Winnipeg , Manitoba
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How do I clean my furnace

Hello, I have an Atwood 8535 in my airstream and the furnace won't light. I'm suspecting that all I need to do is clean it. I can hear the lighter trying to light it but its not getting gas. It seems to be riveted together. Do I have to pull out the whole furnace? Anyone have any experience with this? I've attached a couple picture to kinda show what I'm looking at.

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Old 05-30-2013, 12:47 AM   #2
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I recently went through a similar issue. In my case it turned out to be a dirty igniter. Refer to your manual to locate this in the parts breakdown - in my case, it required no more than removing the two screws that held it in place. When I slid it out, I found it to be totally covered with carbon soot. I cleaned the soot with a brush, slipped the assembly back in and it fired right up.
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Old 05-30-2013, 05:57 AM   #3
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If the obvious things do not solve problem, remove the unit (no easy task) and take it to an authorized Atwood service person/dealer. My unit has been removed twice once for a split plumen and another for broken igniter. My unit is buried under the cabinet for kitchen sink. Had to remove shelves to get to duct work, never saw so many staples, reassembly was done with screws. it goes out and in fairly quickly now. Check your carbon monoxide detector for proper operation, a broken furnace can be deadly.
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Old 05-30-2013, 09:36 AM   #4
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I ended up pulling it apart. The nozzle was clear and the igniter looked perfect. Now I'm guessing it has to be a faulty igniter or circuit board. Nearest dealer is a days drive away. So I'm stuck trouble shooting this on my own for now. My electric ceramic heater is doing a good job in the meantime. Only really need the furnace first thing in the morning to get rid of the chill.
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Old 05-30-2013, 10:19 AM   #5
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Faced the same issues when I bought my current trailer and it turned out to be a faulty circuit board which was located up above the AC unit.
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Old 05-30-2013, 10:59 AM   #6
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1993 21' Sovereign
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Quote:
Originally Posted by Tanker View Post
I ended up pulling it apart. The nozzle was clear and the igniter looked perfect. Now I'm guessing it has to be a faulty igniter or circuit board. Nearest dealer is a days drive away. So I'm stuck trouble shooting this on my own for now. My electric ceramic heater is doing a good job in the meantime. Only really need the furnace first thing in the morning to get rid of the chill.
You know that's not an Airstream-specific part? You can remove it, and take it to an RV place, rather than driving all the way to a dealer.
Is the gas valve opening? You should hear a click, and smell gas a little bit, if the valve opens.
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Old 05-30-2013, 11:55 AM   #7
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I do know that.. I'm a days drive from any dealership lol
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