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07-29-2022, 11:27 AM
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#1
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Established Member
Join Date: Jul 2021
Location: San Diego
Posts: 25
M.O.C. #29275
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A/C and some power outlets went out (no breakers tripped)
I have a 2007 Montana Mountaineer 342pht that's running on 50A power at an RV park right now. It's been really hot where we're at, so we've been running the main living room AC pretty much non-stop. Yesterday, the main AC went out so I just flipped the breakers on/off and it started working again. However, today it suddenly went out again, along with most of the power outlets, but this time no breakers were tripped (flipping them on/off didn't work), and there are no blown fuses. It's strange because the fridge and microwave have power, and the power outlets in the kitchen and bathroom work, but all of the other ones are out.
Does anyone know what might be going on here, and what I need to do to get power back on for the A/C and power outlets?
Thanks!
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07-29-2022, 11:44 AM
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#2
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,165
M.O.C. #6433
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Did you also turn off and on your trailer main 50 amp breaker?
It does sound as though you have lost one hot leg of the 50 amp service. Have you tried turning off and on the park breaker? Either check the park power yourself or have park maintenance check it to eliminate that as the possible cause. If good then on to troubleshooting your power cord and trailer internal wiring.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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07-29-2022, 06:15 PM
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#3
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,219
M.O.C. #30417
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Ya check the power pedestal breaker.
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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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07-30-2022, 08:48 AM
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#4
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,165
M.O.C. #6433
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Did you find the problem yet?
If not, you might unplug your power cord from the trailer and look to see if the connector is burned or discolored from heat. Have been several reports of those overheating and burning the connectors and wire connections. When plugging back in, make sure the connector is completely seated and turned to lock it in.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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07-30-2022, 10:36 AM
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#5
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Montana Fan
Join Date: Mar 2020
Location: Frostbite Falls
Posts: 433
M.O.C. #26015
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I had one side of 50 A trip on a pedestal a couple times. Then the whole thing tripped. Told the campground guy & he said there's nothing wrong better check your trailer.
But that was the only place it ever did it.
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07-30-2022, 12:16 PM
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#6
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,697
M.O.C. #12947
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This is where having a volt meter comes in handy, you can check the pedestal outlet yourself to verify that it’s good or bad. If the pedestal breaker had already tripped once, and if voltage was good, you might have a problem with your shore cord or the plug on it. If the plug is bad, that could easily cause the pedestal breaker to trip.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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08-03-2022, 02:35 PM
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#7
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Established Member
Join Date: Aug 2022
Location: WAYNESVILLE
Posts: 10
M.O.C. #31428
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I had a similar problem. It turned out that the plug on the side of the camper got turned a little not making contact with all the prongs. Rotated it to vertical and all was well.
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08-13-2022, 09:02 AM
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#8
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Montana Fan
Join Date: Apr 2018
Location: Hermitage
Posts: 138
M.O.C. #21626
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Mine did the same thing when new. Turns out it was a loose wire inside my shore power plug. Wiggle the plug outside and see if the power flickers. Check both legs with a voltmeter too. Mine was an easy fix, but it had burn marks around the loose wire connection inside the plug on the side of the coach.
Be careful with live voltage. if it's loose it can zap you.
__________________
Randy & Tracy Elsey
Hermitage Pa.
2017 3791RD
2016 Chevy DD 4x4
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