BoilerFaultCodes 299-506 Medium
Boiler Fault Code 299-506
Also written as 299506 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 299-506 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 accurately read or maintain the necessary water pressure system to function effectively. (As reported on Worcester Bosch 24i RSF)
Pick your boiler brand for the 299-506 fix
Source
Information for the 299-506 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