BoilerFaultCodes D4213 High
Boiler Fault Code D4213
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code D4213 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 heating up too quickly, which usually means the water inside is not circulating properly or the system is low on pressure. (As reported on Worcester Bosch GB162)
Pick your boiler brand for the D4213 fix
Source
Information for the D4213 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