Recent content by KOM

We have a Viessmann Vitodens 100 that has had some issues over the last few years. This winter we had a Viessmann repairman in to fix an F4 fault and he replaced a number of parts at the same time where they typically see problems on this model. We now are having more problems - no fault...

Thanks Graham. Is this something that the average person can do? I admittedly have no knowledge or skills in this area... :?

I have a Viessmann Vitodens 100 Boiler that provides heat and hot water. We are getting neither at the moment - the reset light is flashing red on and off and the pressure is showing at 0.5. Is there a way to fix this ourselves or should I call someone in?