Precor Error Code 70, 71, 72, 73 Flat Belt Count/Software Mismatches

Feb 08, 2022

Applies to

Error "ERR" codes: AMT12 series

Warning "WRN" codes:: SCL800 series

Overview

Error codes 70 thru 79 overview, see 70-79 Overview.

Issues symptoms

When power is applied to the UPCA and LPCA, the stride count written on each of the EEPROMs will be compared to each other and to a set of preset stride conditions. If the stride count written on the EEPROM's do not match or meet a preset stride count condition, an error will be written to the error log or displayed to the exerciser at the end of the workout summary.

• Error 70: Lower PCA not read. The upper PCA EERPOM cannot detect the stride count written on the lower PCA. This error is only reported to the error log. This is usually caused by a lower PCA with no software installed.
• Error 71: New never installed lower PCA. The upper PCA has detected a lower PCA that does not have a stride count written to the lower PCA EEPROM. This is not an error and is used for tracking only. For reference, it will be reported to the error log.
• Error 72: Lower PCA version not known. A version mismatch is detected between the EEPROMs of the upper PCA and the lower PCA. When the upper PCA reads the data from the lower PCAs EEPROM, and the internal version isn’t correct, the upper PCA logs Error 72. The upper PCA will then attempt to write the correct version number to the lower PCA. If the correct version can be successfully written to the lower PCAs EEPROM, then this error probably won’t be seen again. If the upper PCA version number cannot be successfully written to the lower PCA, then numerous errors will be logged with different odometer values. The occurrence of this error would be rare. and if it did occur, the normal operation of the AMT12 would not be affected.
• Error 73: Lower PCA record is bad. A byte-size error is detected between the EEPROMs of the upper PCA and the lower PCA. When the upper PCA reads the data from the lower PCAs EEPROM, and the byte size isn’t correct, the upper PCA logs Error 73. The upper PCA will then attempt to write the correct byte size to the lower PCA. If the correct byte size can be written to the lower PCAs EEPROM, then this error probably won’t be seen again. If the upper PCA byte size cannot be successfully written to the lower PCA, then numerous errors will be logged with different odometer values. The occurrence of this error would be rare, and if it did occur, the normal operation of the AMT12 would not be affected.

Troubleshooting steps

• Error 70: Replace the LPCA.
• Error 71: None, this is for informational purposes only.
• Errors 72 and 73: The LPCA J24 OEM debug connector pins could be bent and touching causing a short, inspect the connector pins for damage before replacing the LPCA board. The LPCA J24 connector is a 10 pin connector located next to the upper right mounting screw. This connector is only used for OEM debug monitoring.
  Replacing the LPCA will only resolve repeated recordings of the error. Errors 72/73 will not affect the operation of the machine but are recorded in the error log.