Voltage Drop - NOT Park Problem
Phoenix Cruiser 2551 30a service - First noticed it when A/C turns on then stumbles. Voltage at another RV outlet dropped well below 100. Capacitors good. A/C working fine until this point. A/C did...
Forum Discussion
I once had a similar problem but I see you stated in your original post that:
"- Checked connections at transfer switch, socket for shore power, junction where old EMS used to be, mains in RV breaker panel. Checked neutrals, grounds and feeds. All tight."
... so I'm not sure if this helps any, but...
The source of my problem was in the main RV breaker panel. Even though all the connections were tight I discovered that someone (at the factory) had cross threaded the screw holding the neutral line in the box. (Things worked for for a few years, then I had power issues.) The screw was tight but hadn't been holding the wire very well and over time the connection degraded with a patina build-up similar to what happens in the contacts in the transfer switch. I had to remove and replace the small bus bar the neutral was attached to and that fixed my problem.
"- Checked connections at transfer switch, socket for shore power, junction where old EMS used to be, mains in RV breaker panel. Checked neutrals, grounds and feeds. All tight."
... so I'm not sure if this helps any, but...
The source of my problem was in the main RV breaker panel. Even though all the connections were tight I discovered that someone (at the factory) had cross threaded the screw holding the neutral line in the box. (Things worked for for a few years, then I had power issues.) The screw was tight but hadn't been holding the wire very well and over time the connection degraded with a patina build-up similar to what happens in the contacts in the transfer switch. I had to remove and replace the small bus bar the neutral was attached to and that fixed my problem.
