Viessmann Central Heating Boiler Controller

[Darren Fletcher]

Hi,

I have a Viessmann boiler with the standard controller.

Although I can set the temperature, turn things on and off etc, the clock no longer turns and therefore the timer does not turn the heating on and off.

Can I replace the clock mechanism only or must I replace the whole thing? Where is a good place to get reasonably priced spares please?

I'm very grateful for your assistance.

Darren

 

[townfanjon]

Pretty sure you cant replace the clock part , silly question have you tried new batteries.
Viessmann direct would probably be the cheapest .

 

[Darren Fletcher]

Pretty sure you cant replace the clock part , silly question have you tried new batteries.
Viessmann direct would probably be the cheapest .

Hi,

Yes, batteries changed twice to make sure. Bought brand new ones.