Westerbeke generator question

anyone experience an issue when you are running generator an it’s at 60hertz an 120 volts and everything functions properly under a load except when you turn microwave on trips out gfi on dedicated circuit on its own breaker??? Breaker can be off still trips out gfi. Microwave is on its own dedicated breaker .

When I had my 98' 370, we learned very quickly when we were going to run the microwave, turn everything else off otherwise it would often pop a breaker. From what I saw, the microwave would draw waaaaay more amps than any single other item on the boat.

x2. Check to make sure you are pulling less than 15 amps when you turn the microwave on otherwise you're likely to trip the breaker.