Quote Originally Posted by Freakie_frog View Post
Sounds like a thermostat problem. Flex watt only heats up to as hot as the thermostat lets it. So if its getting to hot its not the flex watt it the thermostat.
I think she said one piece of flex is connected to the t-stat and is working fine, but the other piece that's also connected to the t-stat (without the probe connected to it) is overheating.

Have you tried placing the t-stat probe on the Luke's and see if the other one gets too cool?