replace transfer switch with 50amp plug?
I have a friend who's on some hard times and living in an older HR pusher in a park. It sounds like his transfer switch has croaked. For a while he would lose power from the pole and it would on...
Forum Discussion
Tom/Barb wrote:
When / IF your transfer switch has ever been hooked up to reverse polarity it's over there is no fix. they are after all a magnetic relay. destroy the magnet destroy the relay,.
What exactly do you mean by "reversed polarity"? And is this 30A or 50A?
On a 30A connection, the transfer switch doesn't have any reference to detect, let alone care about, whether hot and neutral are swapped. It's (usually) an AC coil relay, and 120V AC is 120V AC regardless of which end of the coil is connected to neutral. If it is one with a DC coil, there's a rectifier built into the transfer switch somewhere and that rectifier doesn't care which way the power is connected. (Generally the relay coil wouldn't either, even for a DC relay, but if there's a snubber diode that diode would care.)
On a 50A connection, having a leg and the neutral switched means that one leg (as seen from the point of view of the RV) is at 240V rather than 120V, and if the transfer switch isn't damaged, it's very likely that other things in the RV would be damaged in short order. That is a quite serious wiring problem.
