How much does it cost to fix boiler error code Fault 41 104?

Typical repair cost for the boiler Fault 41 104 fault is £90-180 including labour.

Fault 41 104 Medium

Boiler Fault Code Fault 41 104

Also written as FAULT41104 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Fault 41 104 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 is struggling to read the temperature of the water in your solar cylinder due to a broken or faulty sensor or connection. (As reported on Worcester Bosch Greenstar CDi Compact)

Pick your boiler brand for the Fault 41 104 fix

Worcester Bosch Fault 41 104 2 models

Source

Information for the Fault 41 104 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