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

A failing 3-way diverter valve in a combi boiler causes one of the most disruptive faults homeowners experience — the inability to have both heating and hot water on demand. When the valve sticks or fails, the boiler is unable to switch correctly between central heating and DHW circuits, leaving one or both functions unavailable. The Baxi 3-Way Diverter Valve Assembly ERP (Part No. 7693978) is the correct OEM-specification replacement for a wide range of Baxi, Main, and Potterton ERP combi boilers, restoring full hydraulic switching and normal boiler operation.

This is a professionally refurbished genuine Baxi component. Each valve assembly is stripped, cleaned, inspected, and function-tested to original manufacturer specifications before dispatch — providing reliable performance at a significantly lower cost than a new assembly.

Compatible Boiler Models (Baxi, Main & Potterton ERP Series)

OEM Tested. Function-Verified. Backed by Warranty.

Every refurbished Baxi diverter valve assembly in our range is fully tested and function-verified to original manufacturer standards before dispatch. This 7693978 assembly restores accurate 3-way switching between CH and DHW circuits, eliminating single-mode failures across the ERP combi range. Supplied with a full 12-month warranty.

Delivery & Returns

Orders placed before 1:00 PM are dispatched the same working day. Returns accepted within 30 days in original condition.

Note: Confirm part number 7693978 matches your existing valve before ordering. Installation must be carried out by a Gas Safe registered engineer.