Skip to main content ↑ ↓
Topic: Electric question  (Read 237 times) previous topic - next topic

Electric question

I plug into my shop 15-20 amp plug with a 12/3 100 ft cord. Been doing the same thing for years now. 
Today I get the red light on the volt meter ,reversed polarity,  and the voltage read a little low .    I unplug .  I try another shop plug. Same.
I start the genset and the light goes out .
Any ideas? Thanks. Mm

Re: Electric question

Reply #1 –
Mike,

What does your voltmeter indicate when you check the outlet itself?

If OK, check at the coach-end of the shore power cord.  Keep working toward the coach main 120 VAC breaker box until you find the issue.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Electric question

Reply #2 –
End of cord reads 124.
Meter reads 112. I'll check the outlets with my
Meter.
I reset all of the shop breakers and the red light went out. 
 

Re: Electric question

Reply #3 –
Sound like a bad ground wire possibly in your cord.
Ground prong good?

Without a good ground it won't know polarity.
Justin & Cathy Byrd
1995 U280 "Old Faithful"
36' Build #4673
C8.3 Cummins
Allison MD3060R 6 speed - retarder
Powertech 10KW  4cyl Kubota