BoilerFaultCodesYour boiler is working normally and is currently in standby mode or heating as requested.
This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.
Technical description: Appliance is ok
What causes this fault?
This status indicates that your boiler has power and is functioning exactly as it should. It typically means the unit is in standby mode waiting for a heat request, or it is currently busy providing hot water or central heating. There is no physical fault or blockage preventing the system from operating.
DIY fix possible
No action is required as this light indicates normal operation.Check your thermostat if you expected the heating to be on but it is not.Ensure your gas and water supplies are turned on if you have no hot water.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like Green LED On/flashing, Yellow LED Off, Red LED Off — no call-out fees, no surprises.
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