The reason for today’s visit was to look at mark in the panel, as well as a melted disconnect for the attic heat pump. When we arrive, customer stated that he had opened up the panel to look inside of it while The HVAC company was here last week to check his attic Unit. They looked inside. They noticed the burn mark on the main log for the main breaker. When I arrive today, I open the main panel and found that there was indeed a large burn mark and chunks of metal missing off of the main log. I also found multiple wires that were not terminated properly as well as several grounds landed on the neutral bar. This panel is severely overloaded and is powered by a generator. I recommend the entire panel will be replaced and he’ll be upgraded to at least a 300 system but would recommend just going to the 400 Today we went ahead and replaced the main breaker due to the damage and replace the attic disconnect with a new knife throw safety switch. We also properly terminated the ground wires in