BoilerFaultCodes 288 High
Boiler Fault Code 288
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 288 appears across 1 boiler brand and 4 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is currently unable to read the water pressure level because the sensor responsible for checking it has a loose connection or an electrical fault. (As reported on Worcester Bosch Greenstar 12i System)
Pick your boiler brand for the 288 fix
Source
Information for the 288 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