Precor Error Code 57, 58 Generator Voltage Too Low or High

Jan 27, 2022

Applies to Chrono(Spinner Chrono Power bike) bike

Issue symptoms

Generator voltage is or has been detected as too low (Error 57) or too high (Error 58). These errors are only detected or cleared while pedaling above 35 RPM. May be a temporary condition due to some rider pedaling modalities.

Troubleshooting steps

1. Run the Generator Voltage service test to verify that there is real-time voltage while pedaling.
2. Note: If the external charger is connected, this voltage will always be shown as the charger’s voltage (approximately).
3. When pedaling, the voltage should vary based on the RPM. Should read approximately 9 VAC(Voltage in an alternating current circuit) at 60 RPM.
4. Note: RPM is read from pin 3 of the generator cable. If this phase has dropped, the console may not work and will not display RPM.
5. Replace the generator if the readings are off.
6. If the error persists, replace the lower board.