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Old 07-01-2019, 10:42 AM   #1
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Anyone Perform Maintenance on Atwood HydroFlame Furnace?

Morning!

Yet another project to tackle, with another shortcoming from the manufacturer...

I have a 2017 Palazzo 33.2, with an Atwood Hydroflame furnace. Upon return from a 2400-mile trip, I noticed that the bottom edge of my furnace (bezel, door, the whole thing) was sticking out almost 1/2 an inch from the side of the coach! I could feel weight when pushing in on it, so it wasn't just the trim ring (bezel). Yet the six screws in the door were still tight; and after taking them out, I still couldn't remove the cover. So not wanting to break anything, I opened up the panel under the bathroom counter - and noticed that the furnace was sitting 1/4 to 3/8 of an inch above the shelf! Oh - and no leg under the shelf on the near corner. So all this time, the furnace hadn't been actually sitting on anything! So I added a leg under the shelf, and glued some thin plywood to the shelf under the unit to make the furnace snug and level - which pulled it flush with the exterior of the coach.

But then I got to thinking: If the furnace "door" (according to the Atwood manual) was still tight, yet the entire bezel and door were sticking out from the side of the coach (since it was sitting above the shelf!), what's holding the furnace in?

So 1) Is the door simply snug, or is it glued? Once I remove the 4 screws on the exhaust vent, take it out (which is also snug and not easily moved), and remove the 6 screws out of the door, should I be able to pry the door off? Easily? And 2) once the door is off, should I see some broken/missing/loose screws that should be holding the furnace in place?

As always, thanks for any help and/or experience you all might be able to give!
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Old 07-01-2019, 11:17 AM   #2
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Atwood Hydraflame Installation Guide
https://dunesport.com/manuals/atwood-furnace.pdf
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Old 07-01-2019, 11:22 AM   #3
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The door is not glued, and you don't have to remove exhaust vent. Once 4 screws are removed the door should come off and the exhaust pipe just slides off out of the port in the furnace. You need to pull the door straight and keep it parallel to the wall, or the pipe may bind. Here is a picture with the door removed taken while troubleshooting high temperature switch failure.
Mike
2015 33.2
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Old 07-02-2019, 08:17 AM   #4
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Missing Something?

Old Biscuit - I already have a copy of the installation manual, but thanks anyway. If you look at the last diagram, it shows a washer and a wingnut holding the exhaust tube onto the furnace (item 19); yet the exhaust tube on my coach is on the outside of the painted exterior door, held on by four screws. So I must be missing something: How do I get to the wingnut to remove the exhaust tube before removing the exterior door? Reach blindly from inside the bathroom? First thing, of course, is to verify my specific model number - no easy task. I may end up calling Atwood directly, if they'll talk to me!

Myarmar - Wouldn't think there would be that much difference in just two years; but my door is held on with six screws, and the exhaust port is attached to the exterior door with four more. Yet after removing the four screws off the exhaust tube, I still couldn't get it off - then I saw there's possibly a screw holding it on inside (on some models, anyway). So until I remove the exhaust tube, I can't remove the exterior door... Guess I'll take a photo and post next time. But sincerely appreciate your response!
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Old 07-09-2019, 08:47 PM   #5
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I had to do some work with the flame sensor on mine. I recall just removing the screws on the heat grill and pulling out the exhaust pipe. I then removed the screws on the painted panel and removed the panel. That is how I accessed mine.
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