BoilerFaultCodesThe 6 most common faults
Your boiler has failed to light the flame, which means it cannot provide any heating or hot water until the issue is resolved.
Check that your gas supply is turned on at the meterPrepaid meter users: ensure you have credit and the valve hasn't closedPress and hold the 'R' (Reset) button for 3-5 seconds to see if the boiler restartsCheck if other gas appliances in your home, like a hob, are working correctly
Your boiler thinks a flame is present even though no gas should be flowing, which is a safety conflict that has caused the system to lock itself down.
Press the Reset button on the control panel onceEnsure there is no moisture around the display or controlsIf the fault returns immediately after resetting, turn off the boiler and call a Gas Safe engineer
Your boiler has shut down because the water inside it has become too hot and cannot circulate properly.
Check that all boiler valves underneath the unit are fully open.Ensure that at least one radiator (usually the one in the hallway) has its valves turned fully to the open position.Press the Reset button on the control panel once.Check that your heating system pressure gauge is between 1 and 1.5 bar.
Your boiler has shut down because its internal sensors are giving conflicting or incorrect temperature readings.
Press the Reset button on the control panel to clear the temporary lockoutMonitor the boiler to see if the error code returns immediatelyEnsure there is sufficient water pressure in the system (typically between 1 and 1.5 bar)
Your boiler has stopped working because it cannot detect how hot the water is going into your radiators.
Press the Reset button on the control panelCheck if the boiler fires up and remains operationalIf the code returns immediately, do not attempt further repairs and call a professional
Your boiler has stopped working because it cannot detect the temperature of the water returning to the unit, causing it to shut down for safety.
Full guide for E17on the ECA Confeo Premix HM
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 ECA 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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