Boiler Fault Code f016

Also written as F016 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026

Fault code f016 appears across 1 boiler brand and 4 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 that a vital temperature sensor is incorrectly fitted or has become detached, preventing the system from monitoring heat levels safely. (As reported on Intergas Xtreme)