BoilerFaultCodesVokera Green LED flashing Fault Code
Also written as GREENLEDFLASHING — same fault.
The Vokera Green LED flashing fault code means: your boiler is working correctly and is simply waiting for a request from your thermostat or hot water tap to start heating.. It appears on 1 Vokera model in our database.
Technical description: Appliance is in standby or normal operating mode
What causes the Vokera Green LED flashing fault?
This is not actually a fault, but rather the boiler confirming it has power and is ready to work. It occurs when the internal controls have checked all safety sensors and are simply waiting for you to turn up the thermostat or open a hot water tap. Once you demand heat, the light will typically change to a solid green to show the burner has lit.
This status is more frequently observed in the summer months when the central heating is turned off and the boiler spends most of its time in standby mode.
DIY fix possible
Check that your room thermostat is turned up high enough to call for heatEnsure your programmer or timer is set to 'On' or 'Auto'Open a hot water tap to see if the green light turns solid, indicating normal operation
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Gas Safe Register →Vokera models that show the Green LED flashing fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera Green LED flashing fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026