Hello from JA My name is Woody. I will be glad to assist you today. I have been servicing ALL Major Brands of Appliances for 32 Years, and have over 100,000 in home repairs under my belt.
When they drop out ,can you test the voltage to the unit at the outlet ,since you say the outlet is getting hot?
I have to suspect an electrical issue .
I have looked at four differant parts dealers and I only see one that shows any parts at all and they are NLA (No longer available)
Can you estimate how old the units are ?
Eric just keeping the question open till later .
You do not have to do anything I will take care of it on my end , you just have a safe trip!
Eric It was my pleasure to assist you .