
Worcester Greenstar Junior Flow Sensor & Flow Adaptor 87161157540 87161064330
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.
This part fits the following boilers:
Delivery
Free next day UK delivery is available on orders over £50.
Orders placed before 3 PM are usually dispatched the same working day.
Delivery times may vary for remote areas, Highlands, islands, and non-mainland UK destinations.
If you need urgent delivery help, please contact our customer service team before placing your order.
All Orders First 30 Days:
You can return or cancel your orders for any reason at any time within 30 days of receipt. After 30 days, we reserve the right to charge a restocking fee or refuse the return.
Parts must be returned in the same condition and packaging as received, or we may deduct a percentage of the cost of the part.
A full refund or exchange will be agreed once the item(s) have been received and inspected to ensure they are unused and in their original packaging where applicable.
If the part is returned as faulty and is found to be working upon inspection, postage costs will be deducted from the refund.
Faulty Items After 30 Days:
All items come with a 1 year HTS warranty from the date of purchase. Warranty means HTS will repair or replace the item.
Refunds:
Our returns team will process your refund after we receive and check your items. Please allow up to 15 days for your refund to be processed.
The refund will be made to the original payment method used to place the order.
Contact Us:
For any queries, email us at returns@heatingtradesupplies.com or call +44 01912633708.
Customer Services
National Boiler Spares Ltd
Tyne View Terrace
Wallsend
Tyne and Wear
NE28 6SG