Precor Error Code 53 Holding Brake Slipping

Mar 19, 2022

Applies to SCL800

Issue Symptoms

Error 53 means the Holding Brake has slipped when it should not. This error occurs when the LPCA detects the stairs moving while machine is STOPPED and the Holding Brake is engaged. The holding brake should not allow the stairs to slip or move when stopped or the power is switched OFF.

This error triggers when the either the Holding Brake is engaged at the Welcome banner or during a paused workout, when the LPCA detects a speed greater than 20 SPM for longer than 410 ms. This would most likely be caused by an issue with the Holding Brake or the switch or circuit that detects when the holding brake is engaged.

Error 53 can only be detected while the stairs are moving when they should not and recovers as soon as the stairs stop.

Troubleshooting steps

1. Verify the Holding Brake lever (or handle) position switch operation:
   1. Access the Hardware Validation test menu and run the HOLDING BRAKE test. Follow prompts and verify the LEVER NORMAL (fully forward) and LEVER RELEASED (fully back) positions.
2. Power up the console to the Welcome screen and have the machine stopped. Make sure the holding brake lever is set to the ON :"NORMAL" position (fully forward).
   1. While holding the stairarms attempt to push the steps downward. Apply heavy force and possibly jumping to verify the steps do not slip or move.
   2. If the steps slip or move, replace the Brake assembly.