BoilerFaultCodesThe 6 most common faults
Your boiler has detected that the water pressure in your radiators or pipework is too low for it to run safely.
Locate the filling loop (usually a silver flexible hose) underneath the boiler.Gradually open the black handles (one or two) to allow water into the system.Watch the pressure gauge and close the handles once the needle reaches 1.5 bar.
Your boiler has entered a safety lockout mode because it either failed to light properly or it has detected that the system is getting too hot.
Check that your gas supply is turned on and you have credit on your meter.Locate the selector switch and turn it to the 'R' (Reset) position for several seconds, then back to 'On'.Ensure your radiator valves are open and the system pressure is between 1 and 1.5 bar.
Your boiler has switched itself off because the water pressure in your heating system has dropped too low to operate safely.
Locate the filling loop (usually a silver flexible hose) underneath or near the boiler.Open the filling loop valves slowly until you hear water flowing and watch the pressure gauge.Close both valves tightly once the pressure gauge reaches between 1 and 1.5 bar.
Your boiler has stopped working because it cannot safely confirm that the fan is moving air and exhaust gases correctly through the system.
Full guide for E03Your boiler has detected an internal fault and has shut down as a safety precaution, meaning you currently have no heating or hot water.
Full guide for LED 2Your boiler is currently taking a brief planned break between heating cycles to protect its components and ensure efficiency.
Wait 3 to 5 minutes for the 'egg timer' delay to finish automaticallyCheck that your room thermostat is set high enough to call for heatEnsure the boiler pressure gauge is between 1 and 1.5 bar
on the Ferroli Modena F
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