Hey, everyone, I could really use some help. Completely baffled. I have an englander 25pvdc 2011 model. Received it used last spring. Got it working great. Had to replace an auger motor. No issues. Towards the end of the heating season it would only run at heat range 1. Tried many things at everyone's suggestions. Hard reset, new control board, replaced vacuum hoses, jumped the vacuum switch wires. Made sure the t-stat jumper wire was intact and screws tight, new gasket in glass... the top auger motor runs for approximately 5 seconds every 12.. Since it is stuck in 1, I can adjust the motor speed by raising the LFF setting. I have it at 9 and the motor runs for approximately 9 seconds every 12. It's making good heat. Just can't figure out why I can't change the heat range. Any help would be greatly appreciated. Thanks in advance...Ken