BoilerFaultCodes Low water pressure LED flash High
Boiler Fault Code Low water pressure LED flash
Also written as LOWWATERPRESSURELEDFLASH — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Low water pressure LED flash 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 has detected that there is not enough water in the heating system to operate safely. (As reported on Glow-worm Compact (2006-2011))
Pick your boiler brand for the Low water pressure LED flash fix
Source
Information for the Low water pressure LED flash 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 7 July 2026