LCD High

Boiler Fault Code LCD

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code LCD 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 issue within the internal power control system. (As reported on Ideal HP290)

Pick your boiler brand for the LCD fix

Ideal LCD 1 model

Source

Information for the LCD 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