BoilerFaultCodes Error 193 High
Boiler Fault Code Error 193
Also written as ERROR193 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Error 193 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 boiler has detected air trapped in the pipes, which is preventing the water from circulating properly to heat your radiators or water. (As reported on Potterton Titanium)
Pick your boiler brand for the Error 193 fix
Source
Information for the Error 193 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