Folks, I fired up my 4 year old p61a a couple weeks ago for the heating season and, as usual, all was well.....until last night. Woke up and the stove was cold and off. Cleaned burn pot, unplugged and plugged back in (several times) and it sits there silently. Turned up the temp to 85+, tried Room and Stove Temp High/Low, increased the Feed Rate, all to no avail. Obviously it is full of pellets. There are no blinking lights. The Power, Status, and Combustion Blower are glowing stready red so it's getting electricity. This stove has never given me one minute's of trouble. Any ideas?