Worcester Bosch Flow Regulator 8716118469

The Worcester Bosch 8716118469 is a flow regulator supplied as a spare for the manufacturer's Greenstar range. It sits in the water circuit and governs the rate at which water passes through the appliance, keeping flow within the design band the boiler was set up for. It is a serviceable component, so it is replaced rather than repaired when flow control drifts or the regulator becomes blocked.

• Flow rate at the outlet drops or becomes erratic with no change to the incoming supply.
• The appliance cycles or modulates in a way that points to restricted or unstable water flow.
• Scale, debris or sludge is found in the regulator body or its seating during a service.
• Hot water delivery is inconsistent between draw-offs, suggesting the regulator is no longer holding its set rate.
• Visible damage, distortion or wear on the regulator after strip-down.

• Check the appliance GC number and serial plate against the compatibility list, as the same model name can appear in several build variants.
• Confirm the number on the old component matches 8716118469 or one of the earlier numbers listed below before fitting.
• Inspect any seals or gaskets disturbed during removal and replace them if they are compressed or perished.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.