Precor Error Code 11 Low Voltage Watchdog (Upper PCA)

Feb 17, 2022

Applies to Treadmills, self-powered units with external AC, and Chrono bikes

Treadmills and self-powered units with external AC

Issue symptoms

This watchdog program monitors the voltage of the upper PCA and displays error 11 if it drops below the acceptable value. This can be present if the communications cable between the lower PCA and the upper PCA is faulty, or if a failure in the upper PCA causes an overload in the low voltage power supply, causing it to drop below the limit.

It is also possible to see this message displayed intermittently due to external causes. Error 11 appears if the unit's AC input significantly dips during the power-up test sequence. Treadmills operating on non-dedicated AC circuits may see this message displayed intermittently.

Troubleshooting steps

1. Test the interconnect cable.
   1. Clear the error log and switch OFF the machine power.
   2. Substitute a known good interconnect cable in place of the existing cable directly between the upper PCA and lower PCA.
   3. Power ON the machine and check the error log.
2. Check the upper PCA.
   1. Cycle power on the unit and check the error log.
   2. If the error is consistently displayed when the unit is powered up, replace the console.

Chrono bikes

Issue symptoms

An internal processor failed and so the console may work properly.

Troubleshooting steps

If this error is present and comes back after clearing, replace the console.