It was the heat of the day and the fact that the unit had the cover off while I cleaned it. Not sure if that was the problem but today after putting everything back it ran fine for a couple of hours until I shut it down. I do have two multi-meters. My fluke does have an amp adapter. I think the combination of heat outside and the cheap extension cord caused the problem. I have a heavy gauge extension cord and it is a bit cooler today. Not having the cover on exposed the compressor and the coils to heat up. Today I also cut away some of the front plastic grill allowing the heat off the coils to push hot air out faster.
