Precor Error Code 20 - Motor Will Not Start / No Motor Movement Detected

Jan 02, 2022

Applies to

All AC drive motor treadmills

Issue symptoms

The treadmill is monitoring the motor movement, through current monitoring. If the lower PCA does not detect that the motor is moving, an Error 20 will be displayed. This can be caused by a disconnected drive motor, or a very heavy exercisers standing on the belt while starting.

Troubleshooting steps

1. Verify motor connector is connected to the drive.
2. Check machine for stalling during operation 1 MPH through 6 MPH.
3. Check error log for motor current during fault. If it is very low, check the connector and contacts. If it is over 7 amps, it is likely a true stall condition.
4. Check the belt rating and current draw of treadmill. Replace belt and deck, if necessary.