I have a vitodens 100 wb1a that was I installed in 2005. The boiler started short cycling earlier this year , temperature rising in 2-3 degrees and then shutting down early before cycling again. The engineer added 2 bottles of x800 and it seemed to fix the problem for about 2 weeks. Now it's worse than before and the suggestion is that the heat exchanger is blocked.
Apart from minor parts like electrode and igniter the boiler has been good and ideally I would want another but need to ensure that I find an installer that will fit or fix the boiler properly. I don't recall the installer ever putting any flush or cleanser in when the boiler was fitted other than x100 inhibitor.
My options appear to be get a heat exchanger replaced or a new boiler.
The viessman engineer will call me back later next week with a price for both but recommended a Worcester Bosch boiler! Very strange...I have no experience or recommendation for these so am a little apprehensive. I would rather have another viessman if fitted properly, flushed etc...
So opinions and suggestions please on any fitters in the telford, Shropshire area that I can trust to do a proper job...many thanks
Apart from minor parts like electrode and igniter the boiler has been good and ideally I would want another but need to ensure that I find an installer that will fit or fix the boiler properly. I don't recall the installer ever putting any flush or cleanser in when the boiler was fitted other than x100 inhibitor.
My options appear to be get a heat exchanger replaced or a new boiler.
The viessman engineer will call me back later next week with a price for both but recommended a Worcester Bosch boiler! Very strange...I have no experience or recommendation for these so am a little apprehensive. I would rather have another viessman if fitted properly, flushed etc...
So opinions and suggestions please on any fitters in the telford, Shropshire area that I can trust to do a proper job...many thanks