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08-01-2022, 07:05 AM
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#1
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New Member
Join Date: Aug 2022
Location: Gig Harbor
Posts: 1
M.O.C. #31416
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microwave/electrical
I have a 2015 3791RD. Yesterday as I finished cooking, I had the microwave fan going. It was on for at least 30 minutes. All of a sudden the RV filled with smoke. It tripped the breaker. It smells like electrical burn in the RV. We took the receptacle out and I don't see any melting and wires sticking out of wall seem normal. After a couple hours we plugged the microwave into a different outlet and it gets power. The smell seems to be in the microwave but it powers on. Has this happened to anyone before? Worried about electrical in the wall. Currently we have that breaker turned off.
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08-01-2022, 08:15 AM
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#2
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,206
M.O.C. #30417
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I'm only guessing here but if the smell is coming from inside the microwave then it must be the unit failing. I wouldn't continue to run it  If it tripped a breaker it surely has a problem.
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Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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08-01-2022, 08:52 AM
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#3
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,160
M.O.C. #6433
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Not sure I understand. Are you saying you can run the microwave fan without actually running the microwave?
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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08-01-2022, 09:18 AM
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#4
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Montana Fan
Join Date: Aug 2020
Location: Aurora
Posts: 429
M.O.C. #26926
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Possibly a loose connection at the outlet overheated from running the fan. Is there odor in the cabinet where the outlet is? If so, remove the outlet cover and look/smell for burnt wiring. Loose connections can generate heat and cause insulation to melt (and worse).
Were you using the microwave too (or just the exhaust fan)? Lots of info on bad door switches on this forum.
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Rip & Beth
2021 3121RL Legacy Cobalt FBP, MORryde IS & pin box
2020 F350 PSD CCLB SRW
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08-01-2022, 05:52 PM
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#5
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,692
M.O.C. #12947
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This might be an excuse to upgrade to a new microwave oven. Ours died a couple years ago, and instead of getting another microwave convection oven, we went with a microwave only and it has more power and is a larger oven. If the wiring and outlet look good, its very likely the oven is bad.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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08-17-2022, 01:29 PM
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#6
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Seasoned Camper
Join Date: Jun 2018
Location: Estherville
Posts: 53
M.O.C. #21904
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Your exhaust fan burned out. Just replace it not the whole microwave.
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