Baxi Hall-Effect Sensor 5114767

Fix no hot water starts and unreliable ignition caused by poor flow detection. This OEM hall-effect sensor clips onto the inlet/turbine assembly and sends a clean signal to the PCB so your boiler knows when to fire and modulate correctly.

Why this part

• OEM accuracy: Factory-spec hall sensor for dependable DHW/CH detection.
• Quick swap: Push-fit clip designno re-piping or calibration needed.
• Wide coverage: Used across Baxi Duo-tec/Platinum/Gold families and equivalent Main & Potterton models.

Typical compatibility*

• Baxi Duo-tec 24/28/33/40 HE & HE A, Platinum 24/28/33/40 HE & HE A, Gold Combi 24/28/30 HE, Heatmax/Promax Combi HE ranges, Megaflo System HE A
• Main Eco & Eco Elite (incl. ErP variants)
• Potterton Performa 24/28/30 HE and related models

*Coverage varies by production runalways match by the exact part no. 5114767 and your boilers exploded diagram.

Common symptoms

• Hot water wont fire unless taps are fully open
• Boiler starts/stops at taps (temperature hunting)
• Flow/ignition-related fault codes with pump and gas settings OK

Whats in the box

• 1 Hall-effect flow sensor (Baxi 5114767)

Install & safety

Power off, isolate water, relieve pressure. Clip the sensor in place on the flow/turbine body and reconnect the plug. Verify DHW/CH operation and check for leaks. Must be installed by a Gas Safe registered engineer.