Hello! First post here!
I have an LG LMV1683st microwave that doesn't heat and continues to run with the door open. I checked the door switches for continuity in the door open and closed positions with the wires disconnected. Everything checked out. I figured since the switches were cheap enough, I would replace them anyway just to eliminate that as a possible cause. The issue continued. I know that the control board could be the culprit but are there any other things I can check to diagnose this issue? Thoughts? Suggestions? I am a current student at Master Samurai Tech but have not gotten to the microwave section yet. Thanks in advance!!