Precor Error Code 50 Too Much Brake (Magnet) / Resistance Current

Mar 19, 2022

Applies to Consumer EFX, AMT, UBK/RBK, EFX16, SCL800

Issue symptoms

Consumer EFX, AMT, UBK/RBK, EFX16

This error is associated with eddy current EFXs, AMTs, Climbers and Bikes. The resistance (brake) control system constantly monitors the amount of current being demanded by the eddy current magnet. Error 50 indicates that the amount of current being demanded by the eddy current magnet is excessive.

The most common cause of this error is shorted or damaged wiring between the lower PCA and the eddy current magnet. While possible but less likely, this can be caused when the eddy current magnet is bad or the lower PCA is bad.

SCL800

On SCL: The LPCA detected that the Resistance Brake Current is too High. This means too much current is being fed to the Resistance (EMS) Brake resulting in the holding brake engaging. The error triggers when the resistance brake current is greater than 2 amps DC continuously for longer than 410 ms.

This will likely be caused by a faulty/damaged resistance coil or a faulty or damaged component or circuit on the LPCA.

This error can only be detected while the stairs are moving in a workout and recovers as soon as the stairs stop.

Troubleshooting steps

1. Make sure the resistance brake cable is properly connected to the LPCA.
2. Unplug the eddy current or resistance brake assembly cable connection from the LPCA.
   1. Inspect the eddy current (or resistance) brake coil wires for visual wire damage. Replace brake assembly if damaged.
   2. Use the eddy current brake cable connector to measure the resistance through the eddy brake coil. If infinite resistance (open circuit) or zero resistance (short circuit) replace the eddy current brake assembly.
3. Replace the LPCA.