How much does it cost to fix boiler error code Failure at point L?

Typical repair cost for the boiler Failure at point L fault is £120-£240 including labour.

Failure at point L Medium

Boiler Fault Code Failure at point L

Also written as FAILUREATPOINTL — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Failure at point L appears across 1 boiler brand and 1 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 keep your hot water at a consistent, safe temperature, meaning it may fluctuate between being too hot or too cold. (As reported on Worcester Bosch 24CDi BF)

Pick your boiler brand for the Failure at point L fix

Worcester Bosch Failure at point L 1 model

Source

Information for the Failure at point L 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