BoilerFaultCodesThe 6 most common faults
Your boiler has switched itself off to prevent overheating, usually because the water inside has become too hot.
Check that your radiator valves are open to allow water to flow.Check your boiler pressure gauge and top it up to 1.5 bar if it is too low.Press the 'Reset' button on the boiler control panel to see if the fault clears.
Your boiler has detected that there is either not enough water pressure in the system or the water is not moving through the pipes as it should.
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 valves under the boiler to top up the water pressure.Reset the boiler once the correct pressure has been reached.
Your boiler is overheating because water is not moving through the system quickly enough to be cooled down.
Check that all radiator valves are fully openEnsure the boiler pressure gauge is between 1 and 1.5 barCheck for any signs of an external system blockage or frozen pipes
Your boiler has detected that the water is getting too hot too quickly, usually because the water isn't flowing through the system as it should.
Check that your radiator valves are fully openEnsure the boiler pressure is between 1 and 1.5 barCheck for any visible leaks around the pipeworkTry restarting the boiler using the reset button
Your boiler has shut down because it is getting too hot or the water is not circulating properly through the system.
Check that all radiator valves are fully openEnsure the boiler pressure is between 1.0 and 1.5 barCheck for any visible leaks around the central heating pump
Your boiler has stopped working because water is not flowing through the system quickly enough to prevent it from getting too hot.
Check that the boiler pressure is between 1.0 and 1.5 bar on the gauge.Ensure all radiator valves are fully open.Check if any bypass valves or external pumps are switched off.
on the Biasi Antares System
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
Avoid the next call-out bill
Monthly cover means no unexpected bills when your boiler breaks down.
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