Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post

BB_TX · 07-27-2009, 03:28 PM

Steve - That tester is still a good test. Although it only tests one hot leg, it does show that the polarity on that leg is correct, i.e. hot pin is hot and neutral pin is neutral. And then if you use a meter on both legs at the 50 amp connector, and both legs show 120 VAC to the neutral pin, then the other leg must also be the correct polarity.
And if you show no ground fault, then you are probably OK there also. A ground fault indication will typically be on the neutral line. A ground fault on a hot line will almost surely trip the breaker or prevent it from being reset.

07-27-2009, 03:28 PM	#17
BB_TX Montana Master Join Date: Oct 2006 Location: McKinney Posts: 7,171 M.O.C. #6433	Steve - That tester is still a good test. Although it only tests one hot leg, it does show that the polarity on that leg is correct, i.e. hot pin is hot and neutral pin is neutral. And then if you use a meter on both legs at the 50 amp connector, and both legs show 120 VAC to the neutral pin, then the other leg must also be the correct polarity. And if you show no ground fault, then you are probably OK there also. A ground fault indication will typically be on the neutral line. A ground fault on a hot line will almost surely trip the breaker or prevent it from being reset. __________________ Bill & Patricia Riley, our Golden 2007 3075RL (recently sold, currently without)