BoilerFaultCodesThe 5 most common faults
01
Fan fault High Engineer
Your boiler has stopped working because the mechanical component responsible for circulating air and exhausting combustion gases is not receiving power or has failed.
Full guide for Fan fault02
Outlet sensor faulty High Engineer
Your boiler has lost the ability to measure the temperature of the water leaving it, which means it has safely shut down to prevent overheating.
Full guide for Outlet sensor faulty03
Return sensor faulty High Engineer
Your boiler has lost the ability to measure the temperature of the water returning to it, so it has safely shut down to prevent overheating.
Full guide for Return sensor faulty04
Flue gas sensor faulty High Engineer
Your boiler has stopped working because it can no longer accurately read the temperature of the exhaust chimney, meaning it has shut down as a safety precaution.
Full guide for Flue gas sensor faulty05
Microprocessor faulty High Engineer
The computer that controls your boiler is experiencing an internal error, which means the system cannot safely start or regulate your heating and hot water.
Full guide for Microprocessor faultyon the Ferroli Econcept 100
Combustion fanFan wiring harnessNTC temperature sensorWiring harnessReturn NTC sensorFlue gas temperature sensor
Based on parts cited in our fault code database. Your engineer will confirm what's actually needed after diagnosis.
Call a Gas Safe engineer if…
- You can smell gas or see signs of a leak
- The Ferroli shows an Emergency or High severity code
- The boiler keeps locking out after repeated resets
- You've tried the DIY checks and the fault hasn't cleared
- There's visible water leaking from the boiler
- The flame is yellow or orange instead of blue