[Carl n Susan]

Assuming the 120V appliances are working, the shore power cord is not your problem.


The converter produces 12V on the power buss to charge the batteries and can power 12V devices like the lights. The battery also provides 12V power to the buss. Either one is usually adequate to run minimal voltage 12V devices such as lights.



I suspect the converter is dead or dying and the batteries haven't been charged. Using a VOM, check the voltage being produced by the converter. With shore power you should measure 13.4 +/- volts. Without shore power there should be 12.6 +/- volts. You can do both measurements at the battery to start. The results should give us an idea where to look next.