Error 100 - Two master clocks on bus

What does 100 mean?

The user interface displays '100: 2 master clocks on bus', indicating that there are two devices configured as master clocks on the same communication bus, causing a conflict. This error typically triggers an automatic reset.

• Incorrect configuration of multiple devices as master clocks.
• Installation error during system setup.
• Device malfunction causing it to incorrectly claim master status.

Click steps to track your progress.

1. 1

   Turn off the main power supply to the heat pump for 30 seconds, then turn it back on.

2. 2

   Access system settings (if possible) to identify and reconfigure the clock settings for connected devices.

3. 3

   Allow time for the automatic reset to occur (default 6 hours) or use the manual reset function (Line 6711) if available.

4. 4

   Contact a qualified service technician to resolve the master clock conflict.