I have a 30" MB electric smoker. This problem came out of nowhere now my smoker doesn't seem to have any temp control. It will even continue to heat up and stay on even when the digital control unit is turned off. I don't have it pluged in when I'm not using it but now I noticed after I finish my smoke as like smoking chicken for an hour. When I was done smoking the chicken I hit the off button on the smoker control unit. Later I came back to clean up and put away the smoker and it was still on. I have no idea how hot is was but it was very hot. The wood chips were almost completely gone as being burnt up, that takes some heat. I summited an emailed to MB and they said to unplug the control unit for 30-40 seconds and plug it back in. They said this will reset the control unit. They didn't say to this whith the power on or not. I replied and asked them but never got an answer. Has anyone experienced this and is this fixable?