Originally Posted by Jcolman
Right now I have my refrigerator and space heater plugged into one of the starboard outlets.
They both work fine but I'll replace the breaker in the panel anyway. What puzzles me is why the PO labeled a specific port outlet "110 AC". Perhaps it's the only outlet designed to carry 20 amps while the others are 15 amps?
Before replacing your starboard main 30-amp breaker...
I think you're saying you've got fridge and space heater (maybe a heavy AC consumer) on your starboard side... and when you run the microwave on that same side, the main 30-amp breaker trips.
Perhaps the combination of space heater especially and fridge maybe (possibly both on different sub-breakers??) and microwave is what's tripping the main 30-amp breaker?
Have you tried the microwave with the other stuff turned off?
Or perhaps I've mis-understood, or read too quickly...