How much does it cost to fix boiler error code APS Cycling LOCKOUT?

Typical repair cost for the boiler APS Cycling LOCKOUT fault is £150-250 including labour.

APS Cycling LOCKOUT High

Boiler Fault Code APS Cycling LOCKOUT

Also written as APSCYCLINGLOCKOUT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code APS Cycling LOCKOUT 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 an issue with its internal ventilation system four times in a row, causing it to shut down for safety reasons. (As reported on Potterton Suprima HE)

Pick your boiler brand for the APS Cycling LOCKOUT fix

Potterton APS Cycling LOCKOUT 1 model

Source

Information for the APS Cycling LOCKOUT 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