BoilerFaultCodesThe 4 most common faults
Your boiler has stopped working because the water pressure inside the heating system has dropped too low to operate safely.
Locate the external filling loop, which is usually a small metal braided hose with one or two valves located underneath the boiler.Open the valve(s) slowly to allow water into the system while watching the pressure gauge on the front of the boiler.Close the valve(s) tightly once the needle on the gauge reaches the green zone, typically between 1.0 and 1.5 bar.
Your boiler has detected that there is not enough water inside your heating system to run safely and correctly.
Locate the external filling loop (a flexible metal or braided pipe) underneath your boiler.Open the small valve handle on the filling loop to allow cold water into the system until the pressure gauge reads between 1.0 and 1.5 bar.Close the valve tightly to prevent over-pressurisation.
Your boiler has detected an internal failure or lack of ignition, which has caused it to automatically stop working to ensure your safety.
Full guide for LED 2Your boiler has stopped working for safety reasons and needs a manual reset or a professional check to get your heating and hot water back on.
Full guide for Red lockout lighton the Ferroli F24
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