20 Amp won't work when plugged to shore power
I have recently had an occasion where I needed to stow our coach for several days. All i needed was 20 amp service because all I intended to keep running was the refrigerator and the keep the batterie...
Forum Discussion
Buster747 wrote:
ShapeShifter - what I called "ESP" is the "EMS".
That's what I was guessing, but I didn't want to make assumptions. After all, maybe an ESP is something that supernaturally figures out there's an electrical problem! :B
They key is that if the 30 amp adapter works, but things fail when you add the 20 (actually 15) amp adapter, then that means the problem pretty much has to be in the adapter or socket that it's plugged into. My guess is one of them will have an open ground or swapped hot/neutral polarity (I've seen both.)
The first step is to check the power socket. A quick test is to use one of these testers: (although they don't catch every possible problem)
Do you have one? If the socket is good, the next step is to try a different 20 amp adapter.
