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Old 09-17-2020, 08:07 AM   #1
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GFI

2006 Monaco Windsor GFI in bathroom controls bathroom outlets, kitchen outlets, LR TV, and refrigerator (when refrigerator cord is plugged into inverter controlled outlet)
Explanation. Refrigerator has 2-outlets to plug into which are accessed from outside cover.
1st outlet has its own circuit breaker in electrical panel and works when running the generator or when you are plugged into shore power.
2nd outlet works gets power from inverter while traveling (but also has 120 power when generator and shore power are being used).
Problem: If you leave refrigerator cord in 2nd inverter outlet and run generator or plug into shore power GFI trips.......But GFI does not trip when traveling and "Inverter" button is turned on!!!!!
I replaced GFI 2-times (bless the idiots who specified 12-ga. wire for the build) and even went to higher amperage rating but still same problem.
My routine now is to switch cord locations as required-just like to understand what gives-I know some of the problem is in the refrigerator but why doesn't it trip the GFI when we are traveling. I could understand it if it tripped when plugged into shore power only-ground path is provided but it trips when generator is on.
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Old 09-17-2020, 08:36 AM   #2
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A GFI will not trip due to high current. A GFI will also not trip unless there is voltage to the GFI. A GFI trips when there is even a tiny ground fault.

You have a "Ground Fault". Plugging into the circuit with a GFI (Ground Fault Interrupter) causes the GFI to trip. Plugging into the other circuit which does not have a GFI of course will not trip anything.

It only takes a few milliamps of leakage to trip a GFI. When you unplug the refer from the GFI circuit, you disconnect both hot and neutral wire so GFI does not trip. Fault is in the refer circuits. It could be a heating element leak, corrosion, or other.

I wish you good luck and happy trails ahead!
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Old 09-17-2020, 08:43 AM   #3
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The inverter outlet is for the ice maker. Your heating elements are going bad tripping the GFI. Most run it on propane when traveling.
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Old 09-17-2020, 09:14 AM   #4
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Originally Posted by Ivylog View Post
The inverter outlet is for the ice maker. Your heating elements are going bad tripping the GFI. Most run it on propane when traveling.
This^

Mine are labeled 'refrigerator' and 'ice maker'. They are not there so you have a choice.
The ice maker likely needs far less power than the heating element in the fridge, and the coach is wired appropriately for each.
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Old 09-17-2020, 05:57 PM   #5
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Guess I should have added ^^^ that the inverter outlet lets the refrigerator make ice while on propane going down the road. If on shore/generator power the inverter’s transfer switch is passing the shore/gen power through it... no difference in power source. The wires to the outlets are the same size and a 1200 uses twice the watts (500) as the ice maker.
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Old 09-17-2020, 06:41 PM   #6
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More for making ice while dry camping, with fridge on propane.

They recommend you raise the bale wire before you head down the road so you don't end up with a freezer full of water flowing out of the ice maker mold.
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Old 09-18-2020, 07:34 AM   #7
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You still have a ground fault to find and fix for safe operation.
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Old 09-20-2020, 12:47 PM   #8
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If your saying same outlet only trips on shore power or plugged in and is also powered by inverter. Ground fault may be just over fringe of tripping and if modified SW inverter , maybe the tiny ammeter in GFCI reads a little less milliamp leakage on MSW same way a non true RMS digital meter will read lower voltage from MSW than true RMS or analog meter. That's my theory anyway.
If its to the icemaker maybe water has sloshed into plug or motor ????
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