...lower motor control boar? I have a Pacemaster SX PRO treadmill "circa 1992" with manual elevation control. The lower motor control board burned out, and the only replacement board available is a board with automatic elevation control. I replaced the board with one for automatic elevation control and I can't get the motor to start but constantly get a display error "ele err J" or "bad ele". I'm an electrician and it appears to me that I need to bypass the "elevation control safety switch" and or the "elevation motor harness" connection on the circuit board because there is no automatic elevation motor . These are two male end connections that have no harness to make up to. I would greatly appreciate any information that could help me adapt this board to my treadmill. Thanks, Steve.