Had a heating problem with the MES & decided to tear into it on Saturday. Drilled out all the aluminum rivets & looked inside, it had a wire short that had become disconnected from the heating element. I stripped the wire back & installed a new connector, sanded the terminal, plugged the new connector in & used stainless screws to re-attach the back & back in business. I also decided to take off the old feet on the bottom & installed 4 rolling casters which also lock. Kinda spendy @ $8 a piece from Homedepot, but I think it will be worth it in the long run. About $40 for the whole fix & wheel kit, not too bad. At least it is working again.