Check the listing for details. IDCD71C Treadmill Motor Controller IDCD 71C Treadmill Circuit Board Mainboard. Condition: New. Listed at 194.95 USD. IDCD71C Treadmill Motor Controller IDCD 71C Treadmill Circuit Board Power Supply Board Mainboard Package include Original Controller IDCD71C *1PCS Specification 1.Part number: IDCD71C 2.Application: for treadmill 3.220V 4.Condition: New Warranty 90 days warranty. Confirm Right Board Pls noted, this controller have serveral types. Pls send us a photo of your original/old board for confirmation before place an order, thank you! How to determine the failed controller E01: communication failure, sensor failure; E02: you'd better test the motor first to check if there is any problem with motor, if motor work normal, then need to change controller. E03: Sensor fault; treadmill will run few seconds then show E03; E04: usually over-current fault, this situation is generally burned components on the controller; E08: May be lift motor control fault. Make sure the motor run normal by testing Please make sure that there is no problem with the motor before you place your order.The motor can be tested by the method shown in the picture below. If the motor running smoothly by 2*5# battery, that means the motor is good. If running not smooth or do not run, it means motor broken.