actoSTOR module LED flashing - Communication not OK

What does LED flashing mean?

The status LED on the actoSTOR module is flashing, indicating a problem with communication. This means the module is not properly exchanging data with the Vaillant Ecotec Plus Boilers.

• Communication fault between the display and the PCB in the electronics box.
• Problem with the EBus cable harness connecting the module.

Click steps to track your progress.

1. 1

   Check the cable harness connecting the actoSTOR module to the boiler for secure connections.

2. 2

   Ensure the actoSTOR module is receiving power and its connections are tight.

3. 3

   If the fault persists, there may be an internal communication fault requiring a technician to resolve.