Vaillant air pressure differential switch VC/W255E before 10/2005: original Vaillant spare part, type: Differential pressure regulator. Application: Boiler (Combiketel Turbo VCW 255 E). Manufacturer number: 050562; Instalpunt article number: 8054415.
According to the Vaillant parts lists, this part fits 6 models, including Vaillant Combiketel Turbo VCW 255 E, Vaillant Combiketel Turbo VCW 255/2 E and Vaillant Cv-ketel Turbo VC 255 E. The full list is under “Fits”.
This item is in stock and usually arrives within 3–5 working days.
Check the rating plate of your appliance before ordering; if in doubt, ask the manufacturer or your installer. Work on gas-carrying parts must be carried out by a qualified gas engineer.




