BoilerFaultCodesThe 6 most common faults
Your boiler has failed to light because it cannot detect a gas supply or a flame, resulting in the system shutting down for safety.
Check that your gas meter is topped up and the emergency control valve is in the 'on' positionVerify if other gas appliances in your home, such as a hob, are working correctlyPress and hold the 'Reset' button for 3 to 5 seconds to clear the fault
Your boiler thinks a flame is burning even though it hasn't released any gas yet, which has caused it to shut down for safety.
Locate the 'Reset' button on the boiler control panel.Press and hold the Reset button for 3 seconds.Wait to see if the boiler restarts; if the error returns immediately, call a gas safe engineer.
Your boiler has shut down because the water inside has become too hot, which is usually caused by a blockage or restricted water flow.
Check that all radiator valves are fully open.Ensure the boiler's service valves (underneath) are in the open position.Press the 'Reset' button on the control panel to restart the system.
Your boiler has shut itself down because it is receiving conflicting readings from its internal temperature sensors.
Press and hold the 'Reset' button for 3 seconds to clear the lockoutCheck if your radiators are bled and the system pressure is between 1.0 and 1.5 barIf the code returns immediately after resetting, you must call a Gas Safe engineer
Your boiler has stopped working because it cannot detect any temperature readings from the pipe that brings water back into the unit.
Full guide for E17Your boiler has detected an unusually rapid rise in temperature and has shut down as a safety precaution to prevent overheating.
Press the Reset button on the control panel onceCheck that all radiator valves are fully open to allow water to circulateEnsure your system pressure is topped up to between 1.0 and 1.5 bar
on the ECA Confeo Premix HCH
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
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