BoilerFaultCodesThe 6 most common faults
Your boiler is failing to light the gas flame despite several attempts, causing it to shut down for safety.
Check if other gas appliances, like a cooker hob, are working to ensure gas supply is active.Verify that your gas meter has credit if you use a pre-payment meter.Press the reset button on the front panel once to see if the boiler restarts.
Your boiler is trying to start up but cannot create or detect a flame, leaving you without heating and hot water.
Check that your gas emergency control valve is open and you have credit on your meter.Check if other gas appliances in your home, like a hob, are working correctly.Press the reset button on the front control panel to see if the boiler restarts.
Your boiler has switched itself off because it has detected that the water inside has become dangerously hot.
Wait at least 20 minutes for the boiler to cool down completely.Check that your radiator valves are open and not turned to '0'.Press the reset button on the front control panel.Ensure your boiler system pressure is between 1.0 and 1.5 bar on the pressure gauge.
Your boiler has stopped working for safety reasons and needs to be manually restarted to attempt to fire up again.
Locate the reset button (often marked with an 'R' or a flame symbol) on the boiler control panel.Press and hold the reset button for 2 to 5 seconds.Wait for the boiler to attempt the ignition sequence; if it fails to start after three attempts, call a Gas Safe engineer.
Your boiler appears to have no power and is completely unresponsive when you try to use your heating or hot water.
Check if the boiler's fused spur switch is turned onCheck your home's main consumer unit (fuse box) for a tripped circuit breakerReplace the 3-amp fuse in the boiler's external electrical spur
Your boiler is starting up briefly but then switching itself off because it is struggling to safely expel waste gases or drain excess condensation.
Check the white plastic condensate pipe outside for signs of freezing or blockagesThaw a frozen external pipe using warm (not boiling) water or a heat packEnsure the external flue terminal is not obstructed by debris, snow, or vegetation
on the Biasi Riva Compact HE M96a
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 Biasi 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