Worcester Bosch Cover Valve 87182253740

The Worcester Bosch 87182253740 is a cover valve belonging to the diverter valve and hydraulics group of components. It forms part of the hydraulic assembly on Worcester Bosch Greenstar i ErP System boilers, where it covers and seals the diverter valve area of the block. The cover retains the internal components and keeps the waterway sealed under normal operating pressure.

• Water weeping or tracking from the diverter valve housing on the hydraulic block
• Visible corrosion, pitting or scale build-up on the cover face
• Damp staining or residue around the cover joint after the boiler has been running
• Loss of pressure in the sealed hydraulic section that cannot be traced to another component
• Discolouration or deformation of the cover after prolonged service

• Check the GC number and appliance serial plate to confirm the boiler model before ordering
• Cross-reference the alternative number 1031147 against the part currently fitted
• Inspect the mating face and any seal or gasket at the same time, as these are commonly disturbed during removal
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.