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Old 04-15-2016, 08:40 PM   #1
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Join Date: Mar 2014
Location: Grand Rapids, Mi
Posts: 214
EMS error code E-2: ground fault

My fifth wheel is hooked up in my driveway to an 110 outlet in my garage via a 50 amp cable stepped down to a 30 amp extension via a dogleg then to the 110 wall socket via a three pronged adaptor . Not running anything that draws a lot of amps, just basically charging 12v battery, playing the radio. Today, I thought I'd try the electric water heater and everything shut down. My HWC 50 amp EMS read out an E-2 error message and a subsequent call to progressive industries tech support ( very good support, BTW) had me checking the 110 wall outlet in the garage with my multi meter, where it was revealed that a ground fault was present on that circuit. Plugging in to a different outlet in the house put me back to normal power in the fiver and The error code disappeared.
My question is: If my electrical ran fine all week plugged in to the garage outlet, why did it all of a sudden give me the error code for a ground fault? Can a ground fault appear randomly or be "caused" by too high a demand for voltage by something like turning on the electric hot water heater ? I realize that I was cutting it close by stepping down my 50 amp system to 110, but I was not running the AC , microwave or power tools. .. And why did it suddenly recognize a Ground fault on a circuit that checked out fine initially ? I'm glad my hard-wired EMS picked up the error (thank you, Turbs) but am curious as to whether or not a ground fault can be caused by pilot error, so to,speak...thanks for any light you can shed on the subject

Jim.couillard at gmail
F350 lariat diesel
2013 Sabre 5th Wheel 31 RKOK-6
Demco Hijacker Hitch
2015 F350 Lariat Crewcab DPS SWD 4x4
2013 Sabre BKOK 31
Demco Hijacker Autoslid
Renogy Solar Suitcase
Progressive Industries EMS
Sea Eagle 420 Tandem Inflatable Kayak
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