I had this furnace installed in January of 2003. A little over a year later, it developed a problem; if it has been off for 2-3 days and then I try to start it, the inducer motor runs for a few minutes then the furnace shuts off, the blower never comes on, and I can't get anything to happen until I go out to the furnace, completely cut the power, and then power it back up again. It resets something when I do this because the furnace will start and run normally. I can use it for a day or so then if I shut it off for another 2-3 days, it does the same thing. It ran fine for over a year after it was installed, so something has changed. The dealer changed the circuit board, it seemed to run ok for about a week, then I left it off for a week, now it's doing the same thing again. The dealer had never heard of this problem so they just changed the board thinking it was a circuit issue. Personally I think they were taking a shot in the dark, there has to be something else going on. Thanks for any help. It's not the thermostat, as the dealer bypassed it when they came out and it did the same thing.