Vaillant Three Way Valve 0020020015, this Vaillant 3 way valve is a part that only appears in combi boilers, it allows the hot water to be sent to the central heating system (radiators, etc.) or to the hot water system (taps, etc.). This feature is what separates a normal boiler from a combination boiler due to the fact that a combi boiler wouldn’t require a cylinder to provide heating and hot water. Weather it’s a Condensing Combi boiler or a non condensing combi the Vaillant Plastic Diverter Valve part number 0020020015 functions are the same.
ecoTEC Plus Diverter Valve, this is present in different Combination boilers including the Vaillant ecoTEC Pro and ecoTEC Plus..
Combi is short for combination, and you can have a Vaillant condensing combination boiler or a standard efficiency combination boiler.
Please note there are 2 versions of the Vaillant Divertor Valve fitted in these boilers, some have the plastic diverter and some have the bras diverter valve. This part number is for the Vaillant Plastic Diverter Valve.
Vaillant Three Way Valve 0020020015 is also known as Vaillant Diverter Valve and fits the following Vaillant boilers. ecoTEC pro 26 VUW 266/5-3 A R4, ecoTEC pro 26 VUW 266/5-3 R2, ecoTEC plus 937 VUI 376/5-5, ecoTEC plus 937 VUI 376/5-5 R2, ecoTEC plus 937 VUI 376/5-5 R4, ecoTEC plus 938 VUI 286/5-5 R6, ecoTEC plus 824 VUW 246/5-5 R1, ecoTEC plus 824 VUW 246/5-5 R4, ecoTEC pro 24, ecoTEC pro 24 R1, ecoTEC pro 28, ecoTEC pro 28 R1.
If you have no hot water, or no central heating, or the plastic diverter is leaking and you want to fit a new diverter valve, please always refer to the manufacturer’s instructions. So if you want to replace a faulty diverter valve or a broken diverter valve, always use a Gas Safe Engineer or someone competent.
Heatingspares247.com is a Vaillant Elite Spares Stockist, and we guarantee to supply Genuine Vaillant Spares from the boiler manufacturers. This is a Genuine Vaillant Spare Part.