BoilerFaultCodesIdeal LED 2 OFF Fault Code
Also written as LED2OFF — same fault.
The Ideal LED 2 OFF fault code means: your boiler is failing to light because it isn't receiving enough gas to stay running safely.. It appears on 1 Ideal model in our database.
Technical description: Gas gas supply pressure inadequate at the appliance inlet during an ignition attempt
What causes the Ideal LED 2 OFF fault?
This fault occurs when the boiler detects that the gas coming into the unit isn't at a high enough pressure to safely maintain a flame. The most common reasons include a blockage in the gas pipes, a faulty regulator outside at your meter, or an internal component like the gas valve failing to open fully. To protect your home, the boiler automatically shuts down because it cannot guarantee a stable and clean burn.
This issue sometimes surfaces during the first cold snap of winter when gas demand across the local network increases, exposing pre-existing weaknesses in your home's regulator or pipework.
DIY fix possible
Ensure your gas stopcock is fully open.If you have a prepayment meter, check that you have sufficient credit.Check if other gas appliances, like a cooker, are working to confirm your gas supply is active.
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Gas Safe Register →Ideal models that show the LED 2 OFF fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal LED 2 OFF fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026