Medium
15 on Baxi EcoBlue Combi

Your boiler is signalling an issue with how it manages its secondary heating zone, which may prevent your home from warming up as expected.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Zone 2 CH mode

From this model's manual
Verified against the Baxi Ecoblue Combi installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

E15View →E125View →

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