BoilerFaultCodesThe 6 most common faults
Your boiler has switched itself off because it has reached a temperature that is too high, often caused by a blockage or a pump issue.
Wait for the boiler to cool down completely (at least 30 minutes)Check that your radiator valves are open and not turned to zeroPress the reset button on the control panel to see if the boiler restarts
Your boiler has stopped working because the water pressure inside the system has dropped too low.
Locate the pressure gauge on the front of the boiler or underneathFind the silver braided filling loop valves on the pipeworkSlowly open the valves until the gauge settles between 1.0 and 1.5 barClose the valves tightly and press the reset button
Your boiler is overheating because the water is not moving around the system properly.
Check that all radiator valves are fully openEnsure the boiler pressure is between 1.0 and 1.5 barCheck if any bypass valves are closed or restricted
Your boiler has failed to light because it either cannot get enough gas or the flame has gone out unexpectedly.
Check that your gas meter has credit (if you have a prepay meter).Ensure your gas stopcock is fully open.Press and hold the reset button for five seconds to attempt a restart.
Your boiler is struggling to move water through the system properly before it starts the heating process, often due to a blockage or a pump issue.
Check that your boiler pressure is between 1.0 and 1.5 bar on the gaugeEnsure all radiator valves and isolation valves are fully openTry resetting the boiler to see if the error clears
Your boiler has become too hot and has shut itself down as a safety precaution to prevent damage.
Turn off the boiler and allow it to cool down completely.Check all radiator valves are open and bleed your radiators to remove trapped air.Press the 'Reset' button on the control panel to restart the unit.
on the Baxi Statesman
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