BoilerFaultCodesThe 6 most common faults
Your boiler has temporarily stopped because the water pressure inside the system is too low, or the water is not circulating between the boiler and your radiators properly.
Check the pressure gauge on the front of the boiler; if it is below 1 bar, you need to top it upLocate the filling loop (usually a silver braided hose under the boiler) and open the valves to let water in until the needle reaches 1.5 barClose the valves firmly and restart the boiler
Your boiler has detected that the water pressure inside your heating system is too low to operate safely, so it has temporarily paused to prevent damage.
Locate the filling loop (usually two silver taps connected by a braided metal hose under the boiler).Open the taps slowly to let mains water into the system while watching the pressure gauge on the front display.Stop filling when the needle reaches the green zone, typically between 1.0 and 1.5 bar, then tightly close both taps.
Your boiler has stopped working because the water pressure inside the system has dropped too low to operate safely.
Locate the external filling loop, usually a small silver braided hose with one or two valves underneath the boiler.Open the valve(s) slowly to allow mains water into the system while watching the pressure gauge on the front panel.Stop filling once the needle reaches the green zone, typically between 1.0 and 1.5 bar, and ensure the valves are tightly closed.
Your boiler is unable to measure the temperature of the water inside it, so it has safely shut down to prevent overheating.
Full guide for F.00Your boiler is struggling to accurately measure the temperature of the water returning to it, so it has stopped working to prevent potential overheating.
Full guide for F.01Your boiler has stopped working because it is unable to accurately measure the temperature of the water inside it, likely due to a faulty sensor or damaged wiring.
Full guide for F.10on the Glow-worm Easicom 2 24c
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 Glow-worm 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
Avoid the next call-out bill
Monthly cover means no unexpected bills when your boiler breaks down.
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