What does Comm.flt MC 172 mean?

This information message indicates a communication fault occurred with the soft start card (AA10). It resets automatically when communication is resumed.

• Temporary communication interruption
• Loose connection to the soft start card AA10

Click steps to track your progress.

1. 1

   Check all communication cables and connections to the soft start card AA10.

2. 2

   Ensure cables are securely connected.

3. 3

   If this message reappears frequently, contact a service technician.