Posts by farmer23

    Looping back on this... I have not been able to revive the unit at all. Verified the voltage from the power brick was 18v so that checks out. No amount of fiddling with the power cable makes any difference.

    Is there any secret boot up procedure, like holding a button while powering the unit on?

    Should I consider sending the unit to Viessmann for evaluation?


    Hi folks,

    I was not able to find any solution in the manual for this. Yesterday I tried to power own my Commander but under no scenario will it do so. The power brick seems to be working and I will take a multimeter to the plug and confirm.

    Assuming there is no issue with the power source, what could be the next course of action?

    Thanks for any insight.