Bought this stove in the fall of 2007 and have heated with it for the past 5 winters without issue. Last weekend, after my weekly cleaning of the vent pipes, it failed to start, giving me a "P" error code. I re-cleaned all the pipes, removed the inner panel and cleaned the upper and lower baffles, removed the fan maintenance panel on the left side and cleaned in there too. I am confident there is no blockage of any type. I then removed the pressure switch hose and it was dried up and cracked at one end, so I cut it back to rubber and re-installed it after blowing through it to ensure it was free of obstruction. So now I'm at my wits end. When trying to ignite, the burn pot fills with pellets, the ignitor glows orange, the combustion fan goes, but the pellets do not light and after about ten minutes of trying, it shuts down with a "P" code. Right now I'm at the point of ordering a new pressure switch because I have no idea what else it could be. Anyone have any ideas????