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07-25-2017, 11:46 PM
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#1
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New Member
Join Date: Jul 2017
Location: Vancouver
Posts: 2
M.O.C. #20146
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Reseting shore power fixes Lo dc alarm issue
Fixed but not sure how. Our 2014 Montana took a power hit yesterday. When I got home from work the fridge alarm showed "no AC." Not good. Switched it over to propane everything worked fine. In addition I lost power to the outlets on the left side of the trailer. Checked the temp relay and had no red light. Called RV service in Portland, Ore and he told me possibly the AC element was out. (Set up appointment for next month!) Today when I got home I had a "lo DC" alarm. That's not good. Long story short, while messing around trying to determine 12 VDC problem I turned off the fridge, turned off 50 amp shore power and checked 12 VDC on the outside board. It read 9.3. (this was on the black box to the left of the temp override switch on the two white wires on the right side. Not sure if that was the right place to check or not) So figuring I had an inverter problem I turned shore power back on, turned the fridge on and it worked on AC only. Also got power back to the outlets. Did resetting shore power reset something?
After this I'm researching a Progressive Industries SSP-50XL!
Steve
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07-26-2017, 08:08 AM
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#2
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,167
M.O.C. #6433
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When all else fails, reboot.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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07-26-2017, 08:49 AM
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#3
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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You do need an EMS. We have a progressive portable unit and it shut us down twice a few days ago when the heat index was 121. Not pleasent but it did allow power again when the voltage on the line came back up. Too many AC's in town running at the same time and too little power coming down the line. It's also saved us twice from miswired pedestals. Better to have it shut you down than to have equipment damaged.
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07-26-2017, 09:26 AM
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#4
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Montana Master
Join Date: Jun 2014
Location: Vancouver Island
Posts: 894
M.O.C. #14417
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Your fridge requires DC current to operate on propane. Once your battery recharges your fridge should run on propane again.
__________________
Lenny and Ros
2012 Montana 3400RL,680 Watts Solar,4xT-105 Trojans,GP-ISW2000-12 Inverter,Trimetric 2020, EMSHW50C
2009 Chevy Silverado 3500 LTZ Duramax 4x4 CC Dually, Banks Speed Brake
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07-26-2017, 11:45 PM
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#5
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New Member
Join Date: Jul 2017
Location: Vancouver
Posts: 2
M.O.C. #20146
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Reboot
Quote:
Originally Posted by BB_TX
When all else fails, reboot.
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Yep, LOL..just wish I knew what I rebooted! 
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07-27-2017, 10:03 AM
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#6
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,707
M.O.C. #7992
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Sounds to me you lost one leg of your 50amp service. The refrig and your inverter was on that leg. When you reset the breaker everything came up and as soon as the battery recharges you are good to go. Often times with two breakers strapped together you can not tell when one trips.
__________________
2006 3000RK
2009 Ram 2500
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