Flow sensor kit

Product Overview
Restore instant, reliable domestic hot water tracking to your combi boiler with this genuine Heatline / Glow-worm Flow Sensor Kit (Part Number: 3003201510). This vital safety and operational component detects when a hot water tap is turned on in the home, instantly sending a signal to the boiler's main circuit board to ignite the burner and deliver on-demand hot water.

Crafted with a durable, high-impact composite polymer body and a precision-machined brass inlet thread, this complete kit includes all necessary installation accessories—including a premium rubber O-ring seal, securing clip, and plug-and-play wiring harness. Purchasing an authentic replacement kit guarantees original equipment manufacturer (OEM) accuracy, preventing system faults and ensuring long-lasting operational efficiency.

Key Features
Genuine OEM Part: Authentic Heatline and Glow-worm factory replacement part, ensuring 100% accurate system communication and standard-matching safety.

Complete Installation Kit: Packaged with the flow sensor body, premium rubber sealing O-ring, metal retaining clip, and plug-and-play connection wire loom.

Premium Hybrid Construction: Built with heavy-duty brass threads on the inlet side to prevent cross-threading and a robust composite plastic outlet body to resist scaling.

Directional Flow Control: Features a molded directional flow arrow on the casing to guarantee correct orientation during installation.

Instant Hot Water Response: Features an ultra-responsive internal sensor mechanism to prevent hot-and-cold water fluctuations ("cold showers").