How much does it cost to fix boiler error code AIR FLOW FAULT?

Typical repair cost for the boiler AIR FLOW FAULT fault is £180-450 including labour.

AIR FLOW FAULT High

Boiler Fault Code AIR FLOW FAULT

Also written as AIRFLOWFAULT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code AIR FLOW FAULT appears across 2 boiler brands 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 stopped working because it cannot safely exhaust fumes or confirm that the internal fan is moving air correctly. (As reported on Ideal Concord CXC 48 116)

Pick your boiler brand for the AIR FLOW FAULT fix

Ideal AIR FLOW FAULT 1 model Worcester Bosch AIR FLOW FAULT 1 model

Source

Information for the AIR FLOW FAULT 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