Shore power problems usually trace to one of three places: the dock, the cord, or the boat.
What to Check
1
Test the dock receptacle
Some marina pedestals have GFCI breakers that trip. Reset and test.
2
Test the cord
Burnt or melted ends are common. Visible damage = replace, don't repair.
3
Check the boat's main breaker
Often tripped, often forgotten.
4
Test polarity and ground
Reverse polarity on dock side will trip the boat's safety devices.
When to Call Us
If basic checks don't fix it, you may have a galvanic isolator failure, ELCI trip, or wiring problem. We diagnose and repair properly.