How much does it cost to fix boiler error code S.06?

Typical repair cost for the boiler S.06 fault is £120-350 including labour.

S.06 Medium

Boiler Fault Code S.06

Also written as S06 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 31 August 2026

Fault code S.06 appears across 4 boiler brands and 45 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler's fan is continuing to run after it should have stopped, causing the system to pause for safety reasons. (As reported on Glow-worm Ultracom 24cx 30cx)

Pick your boiler brand for the S.06 fix

British Gas S.06 1 model Glow-worm S.06 30 models Heatline S.06 2 models Vaillant S.06 12 models

Source

Information for the S.06 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 31 August 2026