I had the same problem, Had the Tech come out to look at it, simple replacement of the electronic control unit in the control panel, Part is about $80 , call out for tech was more of what ended up being a 15 min job. If it happens again, I would just get the control unit direct from a parts supplier in town andreplace it my self. It is dead easy, a few screws and unplug the leads and replace DONE.
Willo, March 2010