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Precor Error Code 21 Too Many Maximum Consecutive Power Requests

Feb 21, 2022

Applies to Consumer treadmills, Commercial treadmills pre-2006 Issue symptoms This error monitors the treadmill's power bit reading when the treadmill operates at speeds above 1 MPH. Power bits indicate the relative time the motor controller drive circuit is switched on. Therefore, power bits is an indication of the amount of power the load is demanding from the motor controller. Error 21 ...

Precor Error Code 19 PFC Malfunction

Feb 21, 2022

Applies to TRM800-14/18 treadmills Issue symptoms The treadmill uses Power Factor Correction (PFC) to maximize the input power for greatest efficiency. This allows for fluctuations in the input voltage without affecting the performance of the treadmill. When the MC detects that the PFC circuitry is not able to correctly compensate for fluctuating input voltage, the treadmill will ...

Precor Error Code 18 Dynamic Brake Resistor (DBR) Thermal Switch Open

Feb 21, 2022

Applies to TRM800-14/18 treadmills Issue symptoms As with Error 17, current generated by the drive motor is sent to the dynamic brake resistor (DBR). If enough current is sent to the dynamic brake resistor (DBR) such that it becomes excessively warm, an internal thermal switch will open, which will stop the treadmill and briefly display Error 18. This error will be logged and “Use Another ...

Precor Error Code 12 MC / LPCA Software Watchdog (Lower PCA)

Feb 21, 2022

Applies to Treadmills and powered Ellipticals Issue symptoms On an EFX, the watchdog program monitors the proper execution of software in the LPCA microcontrollers. If a program is stuck in a routine, has a memory leak, or has any other fatal error that stops the program from performing its critical tasks (aka “hung”), the watchdog will be triggered. When this happens, the ...

Stairmaster Steppers SC916 and SC5 Pedal Design Change

Feb 17, 2022

This document explains the change that was made to the SC916 and SC5 model pedals. ...

Stairmaster Steppers SC5 Poor Battery Life

Feb 17, 2022

An investigation of abnormal battery drain reports has led to a change in the electrical system used on the SC5. To maximize performance, the battery and Lower Control Board (LCB) have been enhanced. Should you have a drained battery on an SC5 before serial number 155005DAY12340116, you must replace the LCB and battery together. Please check the attached pdf How to enhanced battery and ...

StairMaster SM D1 Console keypad Replacement

Feb 17, 2022

Please check the attached pdf - StairMaster Steppers SM D1 Console keypad Replacement...

Stairmaster Steppers SC5 and SM5 Relocating A Contact Heart Rate Board

Feb 17, 2022

Please check the attached pdf - Relocating A Contact Heart Rate Board for Stairmaster Steppers SC5 and SM5...

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 ...

Precor Error Code 10 Line Frequency Out of Acceptable Range

Feb 17, 2022

Applies to Treadmills mfg. dates 2006 and later Issue Symptoms The AC line frequency must be either 50Hz or 60Hz for Experience™ Series treadmills built 2006-2013, and between 45Hz and 65Hz for units built 2014 and later. Error 10 is triggered if the line frequency moves outside the acceptable range, or if electrical noise is generated, causing a perceived change in frequency. ...