A couple hours ago we lost shore power. My Progressive EMS showed an error 6 - low voltage. I'm going to round numbers off here but the EMS showed 110v to L1 and I think 3v on L2. Not exactly sure what the L2 number was but it was single digits and the EMS wouldn't pass through power. I swapped the 50 amp cord for a 30 amp cord and connected that to the post. The EMS showed 110v for L1 and 110v for L2 and no errors. So, we do have power, just not 50 amp service.
The RV park electrician then came out and tested the post and said the 50 amp service was good. He first tested power before the breaker then flipped the breaker on and tested the 50 amp outlet and said it too was good. He then tested my 50 amp power cord for continuity and although he fumbled around while testing it, he said it was good. He wasn't sure which posts to test and said he wasn't familiar with all the new RV stuff. Said he had 50 years experience as a Journeyman. I also tested the cord and I'm 90% sure it's OK (you should know by now I'm no electrician).
Since the 50 amp service at the post and the 50 amp cord were OK, that got me worried about possible wiring issues from the RV power receptacle to the EMS. But then I remembered seeing both L1 and L2 were 110v for the 30 amp cord.
My questions...
1- If my 30 amp service is showing both L1 and L2 are 110v and my 30 amp cord works, does that mean the wiring from the RV receptacle to the EMS is OK?
2- Can a 50 amp power cord test out OK for continuity and still be bad when connected to the RV?
It's 100 degrees today and the power cord is kind of soft right where it bends to hang down from the side of the RV. Nothing looks melted but it's difficult to see the metal pins inside the female part of the cord.
I'm OK for now because I can use the Power Assist feature on my Victron inverter to run both A/C's from 30 amp shore power but I need to know if my cord is bad or worse yet, if the wiring from the side of the RV to the EMS is bad.
Thanks for any insights you may have.
The RV park electrician then came out and tested the post and said the 50 amp service was good. He first tested power before the breaker then flipped the breaker on and tested the 50 amp outlet and said it too was good. He then tested my 50 amp power cord for continuity and although he fumbled around while testing it, he said it was good. He wasn't sure which posts to test and said he wasn't familiar with all the new RV stuff. Said he had 50 years experience as a Journeyman. I also tested the cord and I'm 90% sure it's OK (you should know by now I'm no electrician).
Since the 50 amp service at the post and the 50 amp cord were OK, that got me worried about possible wiring issues from the RV power receptacle to the EMS. But then I remembered seeing both L1 and L2 were 110v for the 30 amp cord.
My questions...
1- If my 30 amp service is showing both L1 and L2 are 110v and my 30 amp cord works, does that mean the wiring from the RV receptacle to the EMS is OK?
2- Can a 50 amp power cord test out OK for continuity and still be bad when connected to the RV?
It's 100 degrees today and the power cord is kind of soft right where it bends to hang down from the side of the RV. Nothing looks melted but it's difficult to see the metal pins inside the female part of the cord.
I'm OK for now because I can use the Power Assist feature on my Victron inverter to run both A/C's from 30 amp shore power but I need to know if my cord is bad or worse yet, if the wiring from the side of the RV to the EMS is bad.
Thanks for any insights you may have.
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