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09-18-2017, 03:27 PM
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#1
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Senior Member
Join Date: Dec 2011
Location: Willow, Alaska
Posts: 204
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Inverter failure???
Have a MS2812 Magna Sine inverter in a 2008 Beaver Marquis. Just replaced all the 12 volt coach batteries with 8 Trojan 105s. Tried to hook up to ground power. Keeps tripping the GFCI at the house. Tried different power source. It is the bus. Isolated which circuit breaker is causing problem. It seems the only one that causes it to fault is the 20 amp L1 inverter circuit breaker. Have a green light on inverter. Blinks to show charging. Is it time to replace it outright??? Ran the genny out of gas before I could use it to isolate problem. Ant help is appreciated.
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Mark and Evelyn 
2008 Beaver Marquis Amethyst 45ft, 600 CAT
2018 Ford Edge (toad)...Alaska Residents
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09-18-2017, 03:50 PM
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#2
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Member
Join Date: Jan 2014
Posts: 38
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Inverter failure
Make sure you are not pulling too much power in the coach. My house breaker kept tripping because the wife had turned on the A/C in the coach.
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09-18-2017, 04:02 PM
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#3
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Senior Member
Monaco Owners Club
Join Date: Oct 2009
Location: Tucson, AZ
Posts: 6,579
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Are you connecting to a 220v 50amp service?
Have you gone back and double checked your series-parallel battery connections on the T-105s?
__________________
97 Monaco Windsor- Sold
07 Monaco Executive McKinley- Sold
04 Monaco Signature Chateau IV
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09-18-2017, 04:39 PM
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#4
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Senior Member
Join Date: Dec 2011
Location: Willow, Alaska
Posts: 204
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Double checked the new battery connections. Tried connecting to a 220v 50 amp service and got nothing. Any inputs on how to purge air out of genny fuel line? I cavatated it when I ran it with fuel below 1/4 tank.
__________________
Mark and Evelyn
2008 Beaver Marquis Amethyst 45ft, 600 CAT
2018 Ford Edge (toad)...Alaska Residents
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09-18-2017, 04:42 PM
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#5
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Senior Member
Monaco Owners Club
Join Date: Sep 2007
Location: Gilbert, AZ
Posts: 1,718
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Do not hookup to a GFI circuit -- Bill Willard
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09-18-2017, 06:05 PM
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#6
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Senior Member
Nor'easters Club Holiday Rambler Owners Club
Join Date: Oct 2016
Location: Monadnock Region of New Hampshire
Posts: 1,519
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Quote:
Originally Posted by William Willard
Do not hookup to a GFI circuit -- Bill Willard
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This is probably the best advice! I have a GFCI on my 50 amp feed and turning on the fridge will trip it eventually. Usually in the middle of the night, and since it has an alarm to alert you it is tripped, you wake the entire neighborhood!
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My name is Peter, and I'm never going to grow up.
- Winnebago Era 2010 Class B
- Holiday Rambler 2006 Ambassador 40-DFD Class A
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09-18-2017, 09:44 PM
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#7
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Senior Member
Join Date: Dec 2011
Location: Willow, Alaska
Posts: 204
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William Willard and nehog win the prize. I plugged it in to a non GFCI 115vac outlet. Everything has held for nearly two hours. Volts on batts is up to 14.6. I guess it just does not like GFCI outlets. Think the 50 amp service I was hooked up to may have had a bad leg. Will confirm tomorrow. Thanks for the inputs.
__________________
Mark and Evelyn
2008 Beaver Marquis Amethyst 45ft, 600 CAT
2018 Ford Edge (toad)...Alaska Residents
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09-19-2017, 05:03 PM
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#8
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Senior Member
Join Date: Dec 2011
Location: Willow, Alaska
Posts: 204
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A short post script......elec post in camp space has an intermittent 50 amp breaker. It is latched now but who knows for how long.....
__________________
Mark and Evelyn
2008 Beaver Marquis Amethyst 45ft, 600 CAT
2018 Ford Edge (toad)...Alaska Residents
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