Worcester Bosch 87161157540 Flow Sensor Assembly – Greenstar CDi & Junior

Name: Worcester Bosch 87161157540 Flow Sensor Assembly – Greenstar CDi & Junior - Apex Plumbing Merchants
SKU: 87161157540
Price: 54.99 GBP
Availability: InStock

£54.99

SKU: 87161157540 Category: Boiler Spares Tags: 87161072230, 87161157540, boiler spares, flow sensor, flow switch, Greenstar, Greenstar CDi, Greenstar Junior, Worcester, Worcester Bosch, Worcester spares

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The Worcester Bosch 87161157540 Flow Sensor Assembly is a genuine Worcester Bosch replacement flow sensor for Greenstar combi boilers. It sits in the boiler’s water pipework and detects when water starts flowing, telling the boiler to switch to hot water mode when a hot tap is opened.

It also works as a safety device, monitoring water flow to protect the boiler. A faulty flow sensor can cause no hot water when a tap is opened, the boiler not firing for hot water, or hot water that cuts in and out.

Key Features

Genuine Worcester Bosch part – Part No. 87161157540
Replaces old part number 87161072230
Detects water flow for hot water demand
Supplied with fixing clips and O-rings
Pre-wired with plug-in connector
1 year manufacturer guarantee

Compatible Boilers

Worcester Greenstar 25 CDi, 29 CDi, 30 CDi and 31 CDi
Worcester Greenstar Junior 24i and 28i (MK5)
Other Greenstar and Greenstar ErP combi models

Please check your boiler model or match the part number before ordering. If you are unsure, contact us and we will confirm the right part for you.

Specifications

Brand	Worcester Bosch
Part Number	87161157540
Replaces	87161072230
EAN	4047416994567
Type	Flow Sensor Assembly
Included	Flow sensor, 3 x clips, 5 x O-rings
Condition	New – Genuine Worcester Bosch
Guarantee	1 year manufacturer guarantee

Installation

This part must be fitted by a Gas Safe registered engineer.

Delivery & Returns

Delivery: Orders placed before 2pm (Mon–Fri) are usually dispatched the same working day via our trade courier network. Standard UK mainland delivery typically takes 1–3 working days, with next-day delivery available at checkout for most postcodes. Delivery charges are calculated at checkout based on order size and destination.

Returns: Unused items in their original packaging can be returned within 30 days of delivery for a full refund or exchange. Faulty or incorrectly supplied items are covered under warranty and will be replaced or refunded at no extra cost. Some made-to-order or special-order items may not be eligible for return — please contact us before ordering if you're unsure.

For delivery queries or to arrange a return, please contact our team.

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