BoilerFaultCodesThe 6 most common faults
Your boiler has detected that the water pressure is too low for the system to operate safely and effectively.
Locate the filling loop (braided silver hose) underneath your boiler.Slowly open the blue or black taps until you hear water moving and see the pressure gauge rise.Close the taps tightly when the gauge reaches 1.0 - 1.5 bar.
Your boiler’s water pressure has dropped too low to operate, which is usually caused by a small leak or after bleeding your radiators.
Locate the filling loop handles (usually two blue or black taps) underneath the boiler.Slowly turn both handles 90 degrees until you hear water flowing and the pressure gauge rises.Close both taps tightly once the pressure reaches 1.5 bar on the display.
Your boiler has detected that the water pressure is too low to operate safely and has shut down to prevent damage.
Locate the filling loop (the flexible silver hose) underneath your boiler.Slowly open the one or two taps/levers on the hose until you hear water entering.Watch the pressure gauge and close the taps firmly once it reaches 1.5 bar.
Your boiler has shut down because the internal water pressure has dropped too low to operate safely, causing it to get too hot.
Locate the filling loop (usually two blue handles or a metal braided hose underneath the boiler).Slowly open the valves until the needle on the pressure gauge reaches 1.5 bar.Close the valves tightly and press the 'Restart' button on the boiler control panel.
Your boiler has shut down because the water inside it has become too hot, usually due to low water pressure or trapped air.
Check the pressure gauge and top up the system to 1.5 bar using the filling loopBleed your radiators with a radiator key to remove trapped airPress the 'Reset' button on the front of the boiler control panel
Your boiler has switched itself off because it has become too hot internally, usually because water isn't flowing through the system properly.
Check that all radiator valves (TRVs) are turned to the highest setting.Ensure the blue-handled isolation valves underneath the boiler are in the 'open' position (pointing towards the boiler).Press the 'Restart' button on the front control panel.Check the boiler pressure gauge is between 1.0 and 1.5 bar.
on the Ideal Logic+ Combi C
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 Ideal 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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