BoilerFaultCodesThe 6 most common faults
Your boiler has stopped because the water pressure inside the system has dropped too low.
Locate the filling loop (usually a silver braided hose with one or two valves) connected to the boiler pipework.Slowly open the valves to allow mains water into the boiler until the gauge reads between 1.0 and 1.5 bar.Close the valves firmly and check for any visible leaks around the pipework.
Your boiler has stopped working because the water pressure inside the heating system has dropped too low to operate safely.
Locate the external filling loop, which is a flexible silver hose connected between two pipes under your boiler.Open the valves at both ends of the filling loop to allow water into the system until the pressure gauge reads between 1.0 and 1.5 bar.Close both valves tightly and remove the filling loop if required by your specific setup.
Your boiler is detecting a flame inside before it has actually started the ignition process, which means it cannot safely turn on.
Full guide for E2Your boiler has stopped working because the mechanical fan responsible for pushing out exhaust gases is not spinning or responding as it should.
Full guide for E5Your boiler has detected a faulty temperature reading from its primary sensor, which prevents it from safely heating your home or water.
Full guide for 10Your boiler has stopped working because it is unable to accurately measure the temperature of the water inside the unit.
Full guide for 11on the Intergas Combi Compact HRE
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 Intergas 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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