How much does it cost to fix boiler error code oF?

Typical repair cost for the boiler oF fault is £0-80 including labour.

oF Low

Boiler Fault Code oF

Also written as OF — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code oF appears across 2 boiler brands and 6 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is currently updating its internal settings and is showing this code to indicate it has been reset during its configuration process. (As reported on Ideal Logic Code Combi ESP1)

Pick your boiler brand for the oF fix

Baxi oF 1 model Ideal oF 5 models

Source

Information for the oF 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