BoilerFaultCodes Fault 59 202 Medium
Boiler Fault Code Fault 59 202
Also written as FAULT59202 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Fault 59 202 appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your solar heating system isn't circulating fluid properly, which means the sun's energy isn't being transferred to your water tank as it should. (As reported on Worcester Bosch Greenstar CDi Compact)
Pick your boiler brand for the Fault 59 202 fix
Source
Information for the Fault 59 202 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