BoilerFaultCodesThe 6 most common faults
Your boiler has stopped working because the water pressure inside the heating system has dropped too low.
Locate the filling loop valves underneath your boiler.Open the valves gently to let water into the system while watching the pressure gauge.Stop filling when the needle reaches between 1 and 1.5 bar, then close the valves firmly.Press the reset button on your boiler to clear the fault.
Your boiler has safely shut itself down due to an internal safety fault and needs to be reset.
Locate the reset button or turn the mode selector to the reset position.Hold the reset button for about 2 to 5 seconds and release.Wait to see if the boiler fires up normally; do not repeat this more than twice if it keeps failing.
Your boiler has shut down because the water inside got dangerously hot, which usually points to a blockage in the system or a failing pump.
Full guide for Alarm high limit thermostatYour boiler has detected an issue with its internal temperature sensors and has temporarily stopped working for safety.
Full guide for Fault sensorsYour boiler's temperature sensors are detecting a problem and need to be reset.
Turn the boiler off and on again using the reset button or power switch.Wait a few minutes to see if the error clears.If the error immediately returns, the internal sensors may be faulty.
Your boiler has stopped working because it is failing to ignite the flame, which often points to a problem with the gas supply or the exhaust venting system.
Full guide for Red led fixedon the Vokera Compact
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 Vokera 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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