BoilerFaultCodes Safety thermostat trips High
Boiler Fault Code Safety thermostat trips
Also written as SAFETYTHERMOSTATTRIPS — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Safety thermostat trips appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has shut itself down because it isn't moving water around properly, causing it to dangerously overheat. (As reported on Ferroli Econcept 100)
Pick your boiler brand for the Safety thermostat trips fix
Source
Information for the Safety thermostat trips 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