BoilerFaultCodesThe 6 most common faults
Your boiler has failed to light, which means you will not have any heating or hot water until the issue is resolved.
Check that your gas supply is turned on and other gas appliances are workingPress and hold the reset button for 5 secondsEnsure your credit meter has sufficient funds
Your boiler has detected that there is not enough water pressure or movement to operate safely, causing the system to shut down.
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 to top up the water level.Ensure all radiator valves and the main isolation valves under the boiler are fully open.
Your boiler has detected an incorrect temperature reading and needs to be restarted to clear the error.
Locate the reset button or dial on the front control panel.Press and hold the reset button for 5 seconds or turn the dial to 'R' and back.Wait for the boiler to complete its startup sequence and check if the code clears.
Your boiler has stopped working because the water isn't moving through the pipes as it should, causing it to overheat and shut down for safety.
Check that your radiators are turned on and the valves are openEnsure the boiler pressure gauge is between 1 and 1.5 barTry resetting the boiler to see if the error clears
Your boiler has detected that the water pressure in the system is too low and has safely shut down to prevent damage.
Locate the filling loop (usually a silver flexible hose) underneath the boiler.Slowly open the valve(s) until you hear water entering the system.Watch the pressure gauge and close the valves tightly once it reaches 1.5 bar.Reset the boiler to clear the fault code.
Your boiler has detected that it is getting too hot and has shut itself down for safety.
Wait for the boiler to cool down for at least 30 minutesEnsure all radiator valves are fully openCheck that your system water pressure is between 1.0 and 1.5 barPress the reset button on the control panel
on the Ravenheat Rsf
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 Ravenheat 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