How much does it cost to fix boiler error code Detection Fault?

Typical repair cost for the boiler Detection Fault fault is £120-350 including labour.

Detection Fault High

Boiler Fault Code Detection Fault

Also written as DETECTIONFAULT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Detection Fault 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 tried to start up several times but cannot establish a stable flame to begin heating. (As reported on Ideal Concord CXC 48 116)

Pick your boiler brand for the Detection Fault fix

Ideal Detection Fault 2 models

Source

Information for the Detection 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