can someone tell me what could have caused my plug to burn up? I have an rv with a 50 amp to 30 amp adapter plugged into a 30 amp plus outside. I just noticed the one side of the adapter on the 50 amp...
Only a weak or otherwise poor connection wil cause that. Probably just worn. I would replace both. You should also be careful how much current your pulling through the 30A adapter. Only two large items (AC & water heater for example) at a time when on 30A.