How much does it cost to fix boiler error code F13 – A13?

Typical repair cost for the boiler F13 – A13 fault is £120-£200 including labour.

F13 – A13 High

Boiler Fault Code F13 – A13

Also written as F13A13 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code F13 – A13 appears across 1 boiler brand and 3 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 the sensor that monitors the temperature of the exhaust fumes, causing the system to shut down for safety. (As reported on Ferroli iBoiler 24)

Pick your boiler brand for the F13 – A13 fix

Ferroli F13 – A13 3 models

Source

Information for the F13 – A13 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