BoilerFaultCodesThe 6 most common faults
Your boiler has tried to start up but cannot light the flame, which means your heating and hot water will not work.
Check if other gas appliances in your home, like a hob, are working to ensure you have a gas supply.If you have a prepaid gas meter, check that you have sufficient credit.Press and hold the reset button for several seconds to try and restart the boiler.
Your boiler has become too hot and has shut itself down as a safety precaution to prevent internal damage.
Wait for the boiler to cool down for at least 30 minutesCheck that all radiator valves are fully openCheck the boiler pressure gauge and top up to 1.5 bar if it is lowPress the Reset button on the control panel
Your boiler is trying to start up but cannot successfully light the gas to produce a flame.
Check that your gas supply is turned on at the meterIf you have a prepayment meter, ensure you have credit availableCheck if other gas appliances, like a cooker, are working correctlyReset the boiler by following the instructions in your user manual
Your boiler has failed to fill with enough water pressure within the required time, usually because the system is low on water or there is a leak.
Check the pressure gauge on the front of the boiler; it should ideally be between 1.0 and 1.5 bar.Locate the filling loop (the flexible silver hose usually underneath the boiler) and open the valves to top up the water pressure.Close the valves tightly once the gauge reaches 1.5 bar and press the reset button.
Your boiler has switched itself off because the water pressure in the system is too low for it to operate safely.
Locate the filling loop (usually a silver flexible hose) underneath the boiler.Open the one or two taps on the loop slowly until you hear water moving.Watch the pressure gauge until it reaches between 1.0 and 1.5 bar, then close the taps tightly.
Your boiler is detecting a flame even though the burner should be switched off, which is a safety conflict causing the system to lock out.
Full guide for A02on the Euroterm E27 Plus
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 Euroterm 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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