Check voltage at house batteries, Make sure the disconnect is in the CONNECTED (Use/ON) position, if you are plugged into shore power check converter and its breaker for proper operation, DO NOT TRUST eyes on circuit breakers, TOUCH them.
Then you need to start following the light..
With the RV not plugged in
Get a test lamp, this is a tool that looks like an ice pick with a plastic See thourgh handle, a light bulb in the handle and a wire with clip coming out of hte handle
Start at the batteries, Clip to one post (Negative?) tip to other LIGHT good
move tip to chassis LIGHT =bad ground
Move clip to chassis, touch battery positive to make sure you have a good ground and a bright light.. now move out along the positive wire. If you engounter any device, check both of the terminals (if it has 4 just the big ones)
As you move the clip, check back the last good test point to make sure you have a good ground still.
Problem exists between BRIGHT and Dark test points.
