Originally Posted by CHICKDOE
i had a problem once with power not going through a progressive industries energy system. the power readings showed that everything was good, yet no power to the trailer. it turns out the power readings (voltage and amperage) are taken from the input side of the device. in my case there was a piece of plastic inside the unit that kept the contactors from closing to route power to the output side.
I find it interesting that PI finds it necessary to include instructions to remove the cover on the contactors to make sure no plastic pieces fell in preventing them from opening in the event of an issue. At least, my hardwired 50A had those instructions. Sounds like a QC issue to me...having said that, mine didn't have that problem but, I'm guessing, a number have.