[JRTJH]

The microwave is held in place by 4 screws, one in each corner of the mounting flange. Remove those 4 screws, pull the microwave and flange out of the mounting space. There is a 110 volt plug in the cavity that the microwave plugs into for power.

Unplug it, sit it on the stove and plug it into a known good 110 receptacle. If it powers up, start troubleshooting the plug in the cavity. If it does not power up, start troubleshooting the microwave.

There is a fuse on the power board inside the microwave that will blow to protect the oven from low power sources.

My "WAG" would be that if the receptacle in the cavity is good and it's the microwave fuse, you likely had a situation the lasts time you powered on the microwave where there was a voltage drop and too much "other stuff turned on" inside the trailer. Electric heaters, water heater, refrigerator, converter, and the microwave turned on at the same time "can" (not always but often) put a high demand on the 30 amp power cord, cause a low voltage condition which means high amperage draw and will blow that fuse on the microwave control board.


Let us know what you find.

ADDED: CAUTION !!!!! While you're troubleshooting the power plug in the cavity, remember that it's powered on if the trailer is plugged into shore power, so use caution since your circuit breakers may not be marked properly. We wouldn't want you to turn off the "microwave circuit breaker", touch a bare wire and wind up on the floor (or worse) because the circuit breaker panel was "mismarked at the factory"...… BE CAREFUL !!!!!