BoilerFaultCodesThe 6 most common faults
Your boiler has temporarily stopped working because a safety switch outside the boiler, such as a room thermostat, timer, or external valve, has been triggered or disconnected.
Check your room thermostat or smart controller to ensure it is switched on and calling for heat.Verify that any external heating controls or programmers have power and are set correctly.Inspect the area near the boiler for any disconnected wires or tripped external safety switches.
Your boiler is struggling to push water around the system, usually because the pressure is too low or air is trapped inside the pipes.
Check your boiler's pressure gauge and ensure it reads between 1.0 and 1.5 bar.If the pressure is low, use the filling loop to top it up to the correct level.Bleed your radiators starting from the one furthest away to remove any trapped air.
Your boiler has tried to light itself several times but has failed, likely because there is no gas supply or the ignition part is dirty or broken.
Check if other gas appliances in your home, like a hob, are working to ensure gas is reaching the property.If you have a prepayment meter, check that you have remaining credit and the valve is open.Press the Reset button on the boiler control panel for one to two seconds.
Your boiler has temporarily stopped working as a safety precaution and needs you to press a reset button to try and restart it.
Locate the reset button on your Remeha Avanta control panel.Press and hold the reset button for about 2 to 5 seconds until the screen changes.Wait to see if the boiler fires up normally; if the code returns, do not keep resetting it.
Your boiler is struggling to ignite or begin its normal operation sequence, so it has locked itself out for safety.
Full guide for é1Your boiler is failing to start up properly, meaning it cannot provide heating or hot water at this moment.
Full guide for é2on the Remeha Avanta
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 Remeha 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