viessmann

Hi We recently bought a house with a 5 year old viessmann vitodens gas boiler. We have never really got to grips with it... the manual timer doesn't seem to work and we have to manually turn the heating/hot water on and off using the dials. Last winter we had the hot water set at the factory...

The central heating has been off for a couple of months now. I turned all the upstairs radiators off and drained the system the other week as I was removing the radiators downstairs, ready to decorate/ install new ones, the hot water has been working fine ever since with no problems. Today I...

Hi, Are there any Viessmann experts out there who could give us some idea why I cannot change out the weather compensated control unit for the standard one? We have a Vitodens 200 WB2B with weather compensation which we have had for approx 7 years, its been nothing but trouble - started with...

hi all. We recently installed a Viessmann B2HB 200 series boiler and a Viessmann vitocell indirect hot water tank. The heating side has been online and working for the last month. We commissioned the hot water tank yesterday, it worked fine for 24 hours. Now, when there is a DHW call on the...