Baxi 3-Way Diverter Valve Assembly – Refurbished | Part No. 7693978

The 3-way diverter valve on a Baxi combi boiler is the component responsible for directing hot water from the heat exchanger to either the central heating circuit or the domestic hot water circuit, depending on demand. A seized valve, failed actuator, or degraded internal seals will cause the boiler to lose hot water output, get stuck in heating-only mode, produce lukewarm DHW due to valve bypass, or trigger repeated lockouts. The Baxi 3-Way Diverter Valve Assembly (Part No. 7693978) is the correct OEM replacement for restoring proper combi operation across the compatible boiler range.

This is a professionally refurbished genuine Baxi diverter valve assembly. The unit is fully disassembled — all seals, O-rings, the valve spindle, and the actuator motor are inspected and replaced where required. The refurbished assembly is then hydraulically pressure-tested and electrically function-cycled through multiple switching operations to confirm consistent, reliable performance before dispatch. You receive manufacturer-spec switching reliability at a substantial saving over new OEM pricing.

Compatible Boiler Models

OEM Quality. Proven Performance. Backed by Warranty.

Every refurbished diverter valve assembly we supply is pressure-tested and function-verified before dispatch. This 7693978 assembly restores reliable CH-to-DHW switching, eliminates the bypass leaks and stuck-valve symptoms caused by a deteriorated original, and returns the boiler to full combi operation. Supplied with a full 12-month warranty, it is a proven, cost-effective repair for the Baxi 200, 400, and 600 Combi ranges.

Delivery & Returns

Orders placed before 1:00 PM (Mon–Fri) are dispatched the same working day, with standard (2–3 working days), next-day, and Saturday delivery options available at checkout. Returns are accepted within 30 days, provided the item is unused and in its original packaging.

Note: Please confirm that part number 7693978 matches your existing valve assembly before ordering. Note that 248727 is a related Baxi diverter assembly for different models — check your boiler's parts list carefully. Installation must be carried out by a Gas Safe registered engineer to ensure safety compliance and warranty validity.