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Open Roads Forum  >  Tech Issues

 > Dometic trips GFCI.

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dougrainer

Carrolton, Texas

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Joined: 06/11/2007

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Posted: 05/21/12 10:47am Link  |  Print  |  Notify Moderator

"Here's probably what is happening to your reefer. The problem is that many of the heating elements are either exposed or are clad but with open ends. Moisture will impregnate the refractory insulation when the unit is off. When the unit is first powered up, there can be quite high leakage to ground. As the elements heat up, the moisture dries out and the leakage dissipates. Most of this equipment is designed to be hard-wired on a dedicated circuit where any leakage is normally conducted away by the hard-wired ground. The problem arises when such an appliance is corded and operated on a GFCI protected circuit. The initial leakage will trip the GFCI and never allow the unit to warm up enough to quit leaking. Once you switched to a non-GFCI, the moisture burnt off. You may not have a problem now requiring replacing the unit"

Total Nonsense. Yep, it is worth about 2 cents Doug

Gau 8

United States

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Posted: 05/21/12 11:21am Link  |  Print  |  Notify Moderator

I agree with the moisture causing leakage to ground. That's why I ran it off of a non GFCI circuit till it heated up. This was the first time it did this after a defrost. I am installing a new heater anyway. Cheap peace of mind.

I was asking if the Reefer AC needs to be GFCI.. I did not mean for the whole shore supply. Sorry for the confusion. My home shore power is a dedicated 50A supply. I will probably switch the AC heater to non GFCI as I see no need for it. There is no shock hazard. Appliances quite often do not work well off of them.

teddyu

Enfield, Ct

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Posted: 05/21/12 04:17pm Link  |  Print  |  Notify Moderator

Gau 8,

Glad you agree with me, but I think its a good move to replace the element. as you said cheap fix. Note, the reefer in my RV is on a Non-GFCI circuit. See you down the road. I see, my two cents cause someone else heartburn, not you. Good Luck!


Ted & Carmella in the DreamCatcher a
2008 Challenger 371PE on F53 w/ 2010 Cobalt
R'V there yet?

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