BoilerFaultCodesThe 6 most common faults
Your boiler is not receiving enough gas or cannot create a flame to start the heating process.
Check if your gas prepay meter has creditEnsure your main gas stopcock is turned to the 'on' positionCheck if other gas appliances, like a hob, are working correctlyPress the reset button (flame symbol with a cross) for five seconds
Your boiler has shut down because it has reached an unsafe temperature and is trying to protect itself from damage.
Check that the radiator valves are turned on and not blocked by furniture.Ensure the large isolation valves underneath the boiler are in the open position.Try resetting the boiler by pressing the 'Reset' button (flaming cross symbol).
Your boiler has stopped working because the water pressure is too low for it to operate safely.
Locate the filling loop (usually a silver flexible hose) underneath your boiler.Slowly open the tap or taps on the filling loop until you hear water entering the system.Watch the pressure gauge and close the taps once the needle reaches between 1.0 and 1.5 bar.
Your boiler has shut down because water isn't moving through the system quickly enough, causing a large temperature gap between the outgoing and incoming pipes.
Check that all radiator valves are fully open.Ensure there is enough pressure in the system by checking the gauge is between 1 and 1.5 bar.Gently bleed your radiators to remove any trapped air that might be blocking circulation.
Your boiler is overheating because the water isn't moving through the system quickly enough.
Check that the isolation valves underneath the boiler are in the open position (the handles should be parallel to the pipes).Ensure your radiator valves are turned on and not blocked by furniture.Check if the boiler pressure gauge is between 1 and 1.5 bar.
Your boiler was working but the flame has unexpectedly gone out, causing the system to stop for safety.
Check if other gas appliances in your home, like a hob, are working to confirm gas supply.If it is freezing outside, check if the white plastic condensate pipe leading outdoors is frozen and thaw it with warm water.Press the reset button (flame symbol with a cross) for five seconds to restart the boiler.
on the Glow-worm Easicom 24
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