BoilerFaultCodesThe 6 most common faults
Your boiler has stopped working to protect itself and needs to be manually restarted to clear a temporary glitch.
Locate the selector knob on the front of the boiler control panel.Turn the knob to the 'R' (Reset) position and hold it for at least 5 seconds.Release the knob and wait for the boiler to attempt to reignite.
Your boiler has shut down because it is getting too hot too quickly, usually due to a lack of water flow through the system.
Check that your home's central heating valves and radiator valves are fully open.Ensure the system pressure is between 1 and 1.5 bar on the pressure gauge.Check if the condensate pipe (the white plastic pipe outside) is frozen or blocked.
Your boiler has shut down because a safety or external control circuit, such as an energy-saving thermostat or an external sensor, has been disconnected or interrupted.
Check if your room thermostat or programmer is turned up and calling for heat.Replace the batteries in your wireless room thermostat if applicable.Ensure any external emergency shut-off switches haven't been accidentally turned off.
Your boiler was working but the flame has unexpectedly gone out, causing the system to stop as a safety precaution.
Check if other gas appliances (like a hob) are working to ensure your gas supply is activeIf you have a prepayment meter, check that you have sufficient creditTurn the selector switch to the reset position for five seconds and then back to 'On'
Your boiler has stopped working because it cannot correctly detect the water temperature or the water isn't moving through the system as it should.
Check that all radiator valves and isolation valves are fully openCheck that your external pump (if visible) is running and hasn't seizedReset the boiler by turning the selector knob to 'R' for five seconds and then back to 'On'
Your boiler has shut down because it has become too hot inside and needs time to cool down safely.
Check that all radiator valves are fully open to allow water to circulate.Ensure your system pressure is topped up correctly between 1 and 1.5 bar.Attempt to reset the boiler by turning the selector knob to 'R' for five seconds.Verify that the external pump (for heat-only systems) is running.
on the Baxi 613 Heat
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 Baxi 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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