Vaillant · ecoTEC plus Boilers
The status LED on the actoSTOR module is off, which means the module is not receiving any power. Without power, it cannot function or communicate with the Vaillant Ecotec Plus Boilers.
Click steps to track your progress.
Check the main power supply to your Vaillant Ecotec Plus Boilers to ensure it is on.
Verify all cables connected to the actoSTOR module are securely fastened.
Inspect the module's power cable for any visible damage or loose connections.
If power seems to be present and connections are good, a deeper electrical fault may exist, requiring professional service.