BoilerFaultCodesThe 6 most common faults
Your boiler has failed to light or maintain a flame, meaning it cannot heat your water or radiators for safety reasons.
Check if other gas appliances in your home, such as a hob, are working to ensure gas supply existsCheck if your gas meter has credit if you use a pre-payment systemPress the reset button once to see if the boiler restarts
Your boiler has likely overheated, causing a safety sensor to automatically shut the system down to prevent damage.
Allow the boiler to cool down completely for 30 minutesCheck that your radiator valves are open and not blocked by furnitureLocate the reset button on the control panel and press it firmly
Your boiler has detected that water is either not moving through the system properly or there is not enough pressure for it to operate safely.
Check the pressure gauge on the front of the boiler; it should be between 1 and 1.5 bar.If the pressure is too low, use the filling loop underneath the boiler to carefully top it up.Ensure all radiator valves are open and that the pump has not become stuck after a long period of inactivity.
Your boiler has stopped working because it cannot light the gas burner or keep the flame burning safely.
Check that your gas emergency control valve is open and you have credit on your gas meterPress and hold the 'Reset' button (adjacent to the red neon light) for several secondsEnsure there are no obstructions around the external flue pipe outside your home
Your boiler has shut down because it has detected it is getting too hot, usually due to a lack of water flow or a circulation blockage.
Check that your radiator valves are open to allow water to flow.Check the central heating pressure gauge is between 1 and 1.5 bar; top up if low.Turn the selector switch to the reset position for five seconds, then back to the desired setting.
Your boiler has detected a problem with how it is venting waste gases or taking in fresh air, causing it to shut down for safety.
Check the flue terminal outside your property to ensure it is not blocked by debris, leaves, or snow.Inspect the terminal mesh for any bird nests or physical obstructions.Restart the boiler using the selector switch to see if the fault clears.
on the Baxi Bahama 80e / 105e
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