Com.err. RMU — Communication error with room unit

What does Com.err. RMU 196- 199* mean?

This information message indicates a communication fault occurred with the room unit. It resets automatically when communication is resumed.

• Temporary communication interruption
• Loose connection to the room unit

Click steps to track your progress.

1. 1

   Check all communication cables and connections to the room unit.

2. 2

   Ensure cables are securely connected.

3. 3

   If this message reappears frequently, contact a service technician.