Precor Error Code 39 LPCA ASL processor communication Error/Warning

Mar 03, 2022

Applies to

EFX800-16. EFX700-17 ellipticals:  Error 39:

SCL800:  Warning 39:

Issue symptoms

There is a loss of communication between the Major and ASL processors on the LPCA board. An error/warning 39 event will be logged but an error/warning message will not be shown on the console. Depending on the failure mode, the ASL status light may not illuminate.

Possible causes

• Damage to one of two processors on the LPCA board: either the Major or ASL processors.
• Intermittent failure caused by a shorted ASL cable or a short on the ASL board.

Troubleshooting steps

Case 1: Error/Warning 39 only occurs intermittently, not at every power up.

1. Replace the ASL board and ASL cable.
2. If issue continues, replace the LPCA board.

Case 2: Error/Warning 39 occurs continuously and can be reproduced at every power up.

1. Disconnect the ASL cable from the ASL board. Wait for diagnostic LEDs on the LPCA to power OFF, then power ON the machine and verify if Error/Warning 39 reoccurs.
   1. If Error/Warning 39 does not reoccur, replace the ASL board.
2. Disconnect the ASL cable from the LPCA board. Wait for diagnostic LEDs on the LPCA to power OFF, then power ON the machine and verify if Error/Warning 39 reoccurs.
   1. If Error/Warning 39 does not reoccur, replace the ASL cable and the ASL board.
   2. If Error/Warning 39 does reoccur, replace the LPCA board, the ASL board, and the ASL cable.