thank you so much for your good answer.
I have marked the buttons that could be used.
Can you give me detailed process? thanks a lot.
what's the the square button? button 1? or button 2?
what's the use of button 4 and button 5?
the moment i can not get hot water from vaillant.
i tried to restart the machine, but i forget which buttos can be used.
does some guy can help me? and write a simple process to start the machine.
the moment i can not get hot water from vaillant.<br>i tried to restart the machine, but i forget which buttos can be used.<br>does some guy can help me? and write a simple process to start the machine.<br><br>