BoilerFaultCodes
The most common Heatline faults
Your boiler has tried to light several times but has been unable to sustain a flame, meaning you will have no heating or hot water until it is reset.
Check if your gas meter has credit or other gas appliances are workingEnsure the gas isolation valve under the boiler is fully openPress and hold the 'Reset' button (the one with the flame symbol) for 2-3 seconds
Your boiler has switched itself off because the water level inside the heating system has dropped too low to operate safely.
Locate the external filling loop, which is usually a silver braided hose under the boiler.Open the small valve or tap attached to the loop slowly, allowing water to enter the system while watching the pressure gauge.Stop filling once the needle reaches the green zone, typically between 1.0 and 1.5 bar, then ensure the valve is fully closed.
Your boiler has switched itself off because the water inside it has become too hot, usually due to a lack of circulation or a blockage.
Check that your radiator valves are fully open to allow water to flow.Check the boiler pressure gauge and top up to 1.5 bar if it is too low.Reset the boiler using the control knob to see if the fault clears.
Your boiler has shut down to protect itself, likely because it got too hot or failed to light the gas flame.
Turn the main control knob to the 'Off' position.Wait for at least 15 seconds for the system to reset.Turn the control knob back to the 'On' or 'Winter' position and check if the flame ignites.
Your boiler has failed to light or maintain a flame, meaning you have no heating or hot water because the burner has shut down for safety.
Check if other gas appliances, like a hob, are working to confirm your gas supply is active.If you have a prepaid gas meter, check that you have remaining credit.Press and hold the 'Reset' button for 2-5 seconds to see if the boiler restarts.
Your boiler has stopped working because the water pressure inside the heating system has dropped too low to operate safely.
Locate the external filling loop, which is usually a flexible silver hose under the boiler connecting two pipes.Open the attached valves slowly to allow mains water into the system until the pressure gauge reads between 1.0 and 1.5 bar.Close both valves tightly and ensure no water is leaking from the connection points.
Your boiler has become too hot and has automatically shut down to prevent damage or safety issues.
Check that all radiator valves are fully open to allow water to circulateEnsure there is enough pressure in the system by checking the gaugeOnce the boiler has cooled down, press the reset button
Your boiler has detected that there is not enough water in the system to operate safely and has shut down as a precaution.
Locate the filling loop (the flexible silver hose) underneath the boiler.Slowly open the one or two taps on the filling loop until you hear water entering.Monitor the pressure gauge and close the taps once the needle reaches between 1.0 and 1.5 bar.
Avoid the next call-out bill
Monthly cover means no unexpected bills when your boiler breaks down.
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