Odd power problem.
2012 Fleetwood Expedition 38S. When we checked into this park last Thursday we connected to 50 amp service and all was good. When we got up Friday morning we had no power, the breaker on the post...
Forum Discussion
The No Service means that the EMS system does not see ANY 120 voltage to your interior 120 breaker panel. The fact that you could get service on 30 amp adapted and then unplugging at the new site and reconnecting shows you may have a 50 amp Transfer switch failure. The next time it happens, start your Genset and wait for the power to Transfer. Then turn the Genset OFF and see if the 50 amp Shore Power returns. If the Blue light is ON, then the 120 power is going thru the Power Cord. In this type case, the BEST way to check your system is to take the Cover off the Interior 120 breaker panel and testing for voltage at the 50 amp breakers. IF no voltage, then go to the Transfer box and check for incoming Shore Power voltage. IF the Transfer box is indeed intermittent, when removing the Transfer box cover, that may cause the inop relay to then engage and close. Which makes it harder to diagnois. Is the 50 amp shore cord hardwired to the Transfer Box, or do you have a cable that has the twist lock connection on the motorhome? The cable can be disconnected at both ends and stored? Doug
