Worcester Boiler Flow Sensor & Adaptor 87161157540 87161064330

Product Overview

The Worcester Boiler Flow Sensor & Adaptor (87161157540 & 87161064330) is a replacement hydraulic component kit designed for use within selected Worcester heating systems.

The flow sensor monitors the movement of domestic water through the boiler and sends signals to the boiler's printed circuit board (PCB), enabling the appliance to recognise hot water demand and operate correctly. The flow sensor adaptor provides the mounting and connection interface between the flow sensor and the hydraulic assembly, ensuring correct positioning and reliable operation.

Together, these components help maintain accurate flow detection and reliable domestic hot water performance.

ℹ️ Product Condition Options:

This part may be available in New or Refurbished condition. Please check the available options from the dropdown menu.

Technical Insight & Common Failure Symptoms

The flow sensor is an important part of the boiler's hydraulic control system. As water flows through the boiler, the sensor detects the movement and communicates with the PCB to initiate hot water production. The adaptor securely supports the sensor within the hydraulic assembly. Over time, scale build-up, wear, or deterioration of the adaptor may affect performance or cause leaks.

Typical symptoms linked to a faulty flow sensor or adaptor include:

• No domestic hot water
• Boiler failing to recognise hot water demand
• Intermittent or inconsistent hot water
• Water leaks from the hydraulic assembly
• Flow-related boiler fault codes
• Reduced hot water performance

Replacing worn components may help restore accurate flow detection and reliable boiler operation.

Kit Contents

The kit includes:

• 87161157540 – Flow Sensor Assembly
• 87161064330 – Flow Sensor Adaptor

Please refer to the product images for the exact contents supplied.

Compatibility

This part is designed for selected models within the Worcester Greenstar range. Please strictly verify the manufacturer part numbers 87161157540 and 87161064330 against your boiler's technical manual, exploded parts diagram, or existing components before ordering to guarantee correct fitment.

Safety Advice

Boiler hydraulic components involve water pressure, electrical connections, and internal heating system assemblies. Installation and servicing must be carried out by a Gas Safe registered engineer in accordance with current regulations and manufacturer instructions.