SOURCE: error 1 message on older life fitness t3 treadmill
Error 1 - Start up error. This is caused because the belt was commanded to move and the opto (speed sensor on the motor) has not seen any movement or the belts movement was interrupted prior to it reaching its commanded speed. To fix Verify opto operation in Diagnostics, Motor Test
Mode, Section 2. Verify DC voltage at connector P6 pins 1 and 2. Verify that LED 4 on the Motor Controller flashes as the motor moves. Let me know if you need any more help. Fitness Fix-It
SOURCE: FET Error
FET error is caused by a short in the driver transistor on the motor controller. Unfortunately, the fix for this is to replace the motor controller.
SOURCE: Fet error message
The FET error message is caused by the driver transistor on the motor controller has shorted out. Unfortunately, the fix is replacing the motor controller.
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