How much does it cost to fix boiler error code 30 40 50 60?

Typical repair cost for the boiler 30 40 50 60 fault is £150-300 including labour.

30 40 50 60 Emergency

Boiler Fault Code 30 40 50 60

Also written as 30405060 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 30 40 50 60 appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has detected an issue with the air intake or exhaust system, causing it to shut down to prevent unsafe operation. (As reported on Chaffoteaux Serelia 24 MFFI)

Pick your boiler brand for the 30 40 50 60 fix

Chaffoteaux 30 40 50 60 2 models

Source

Information for the 30 40 50 60 fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026