How much does it cost to fix boiler error code LC5?

Typical repair cost for the boiler LC5 fault is £450-£900 including labour.

LC5 High

Boiler Fault Code LC5

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code LC5 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 heat pump has stopped working because of a communication or electrical fault in the main power control unit. (As reported on Ideal HP290)

Pick your boiler brand for the LC5 fix

Ideal LC5 1 model

Source

Information for the LC5 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