I do not know the answer but I would check to be sure there is nothing on top of it and that it has adequate ventilation. Try pointing a room fan at it and see if the problem goes away. If not you may wnat to contact there service as it sounds like it is either overheating or failing.
Answers & Comments
I do not know the answer but I would check to be sure there is nothing on top of it and that it has adequate ventilation. Try pointing a room fan at it and see if the problem goes away. If not you may wnat to contact there service as it sounds like it is either overheating or failing.