I have a used Quadrafire Castile that I rebuilt and has been used in my cabin flawlessly for the 3 months. Just yesterday it had reached temp and shut down. About an hour later it wanted to start up again. The combustion motor starts up but when it calls for heat the motor then bogs way down to just a slower spin. Everything is clean and clear. I also noticed that it is on med. the fan runs, but if you try to flip it to high, it bogs down also. High speed signal from the control panel bad? I tested all the snap disks, removed auger to look for obstructions, and reseated the control board. Thoughts?