BoilerFaultCodes 213 High
Boiler Fault Code 213
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 213 appears across 1 boiler brand and 5 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 the water leaving the unit is significantly hotter than the water returning to it, suggesting a blockage or a pump issue preventing water from circulating properly through your radiators. (As reported on Worcester Bosch Greenstar 12i System)
Pick your boiler brand for the 213 fix
Source
Information for the 213 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