72180609500 Kenmore Microwave - Instructions

Removed grill vent. Removed screws (save screws) from top of unit and removed broken tabs that the screws held in the frame. Inserted the bottom tabs of the grill vent and slid the top tabs into the slots, centering under the screw holes. Screwed the two screws in. This problem likely originated during a repair call where a leaf had fallen into the vent pipe and landed on the fan, creating a clicking sound. Our guess is that the mx person pulled off the vent without removing the screws, and simply replaced it. We didn't notice until it came off in our hands while cleaning it.

unplug the unit then pull down , lot of screws are on top. open the cover . you could see the parts that need to replace on the right hand side (heavy side). disconnect wires then test the parts that need to replace by a tester to make sure that it's really broke .then unscrew part and replace .

Problem was a faulty door latch switch. I easily accessed the switch by removing the control panel, total of 4 screws. After that, just disconnected the three switch door latch assembly and connected the new one. Took about half an hour and was very easy. Unit works perfectly now.

Disassembled control panel and checked power transformer windings. Primary winding fried. Patched power to magnatron transformer to make sure it was ok. Removed power transformer and checked diodes and transistors on board which were ok. Installed new transformer and reassembled control panel to microwave. Checked functions.