Originally Posted by ken gardner
he found a fuse box just above the batteries, does not appear to be blown
What he needs to check is the main battery feed breaker it is a resettable one located usually to the upper left of the control panel in the battery compartment area. It has a red button that will trip it and a red arm will appear on the left of it. To reset you need to push the red arm back into the body of the breaker.
Here is a picture of the resettable breaker.
This breaker usually trips when the battery voltage is low and you try to use the hydraulic pump.
So if you learn anything today you need to make sure your master battery disconnect switch is on when plugged into shore power or you will not charge the batteries.
Hopefully this helps you a little.