Vokera Excel 25 Gas Valve – Pre-Owned | Part Nos. 20039202 / 10028538 / 10027187 / 20025752

A gas valve that is sticking, misfiring, or failing to modulate correctly will cause a Vokera combi boiler to behave erratically — leading to ignition faults, unstable heat output, or repeated lockout errors. The gas valve is the primary control point for gas supply to the burner, and when it fails, the boiler cannot run safely or efficiently. The Vokera Gas Valve (Part Nos. 20039202 / 10028538 / 10027187 / 20025752) is the direct replacement for this critical component, restoring precise gas regulation across a broad range of Vokera Compact, Excel, Vision, Linea, Unica, and related models.

This pre-owned unit is removed from a fully functioning boiler and tested by our qualified engineers before dispatch. It covers an exceptionally wide compatibility range including Compact 25A, 29A, 32A, Excel 25/29, Vision 25C/30C, Unica, Mynute, Procombi, Sabre, Linea, Maxim, Vibe, Easi Heat-I, and Vision Plus series. Supplied with a 6-month warranty. A brand-new version with a 12-month warranty is also available.

Compatible Boiler Models (Selected)

Tested. Reliable. Warranted.

Every pre-owned Vokera gas valve we supply is removed from a working boiler and fully tested for correct gas flow regulation and safe combustion performance before dispatch. This valve covers one of the broadest Vokera compatibility ranges available, and is supplied with a 6-month warranty for added peace of mind.

Delivery & Returns

Orders placed before 1:00 PM (Mon–Fri) are dispatched the same working day, with standard and next-day delivery available at checkout. Returns are accepted within 30 days in original unused condition.

Note: Please confirm that one of the part numbers 20039202 / 10028538 / 10027187 / 20025752 matches your existing gas valve before ordering. Installation must be carried out by a Gas Safe registered engineer to ensure safety compliance and warranty validity.