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Worcester Bosch Flow Sensor Assembly 8716122562

Worcester Bosch

Worcester Bosch Flow Sensor Assembly 8716122562

Worcester Bosch flow sensor 8716122562, a replacement sensor for Greenstar combi and system boilers, replacing 87161072230 and 87161157540.

At a glance

  • Part type: Thermostats, thermistors and sensors
  • Also known as 1015138
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
8716122562
GC number
H02-529
Showing prices

£65.58

£54.65 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Worcester Bosch flow sensor 8716122562 is a replacement sensor assembly used across the manufacturer's Greenstar range of combi and system boilers. It detects water movement through the appliance's hydraulic circuit and passes that signal to the control board, which uses it to decide when to fire the burner and how to modulate output for domestic hot water and heating demand. The part sits within the Worcester Spares range and is listed as a direct replacement for earlier numbers 87161072230 and 87161157540.

Signs this part needs replacing

  • The boiler does not fire on a hot water draw-off even though the tap is running.
  • Domestic hot water temperature is intermittent or fluctuates noticeably.
  • A heating demand is recognised late or not at all.
  • Flow or water-detection fault codes are logged on the control board.
  • Scale or debris is found on the sensor body during a service or strip-down.

Before you order

  • Check the GC number on the appliance data badge against the compatibility list before ordering.
  • Confirm the number on the existing component matches 8716122562 or one of the earlier numbers listed.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

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Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.