I have an Englanders pellet stove. Everything works fine except control board. It starts, burns, feeds no problem. The left digital up/down and right digital up/down buttons/arrows are stuck on 2 for the left and right button/arrow only goes down. As we know, the control board is 300.00 US! As I stated above, everything works great. I just can’t gulp down the 300.00 for control board . Basically the unit is stuck on low and it’s the only heat source for a 1200 sq ft garage. Can anybody help me out with some troubleshooting ideas or bypass options? Plez