BoilerFaultCodes E02-313 Emergency
Boiler Fault Code E02-313
Also written as E02313 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E02-313 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 has detected that a seal around the internal fan unit has failed or is leaking, which prevents the system from safely venting gases. (As reported on Potterton Kingfisher MF RSL)
Pick your boiler brand for the E02-313 fix
Source
Information for the E02-313 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