Green LED flashing rapidly (8/sec) Low

Vokera Green LED flashing rapidly (8/sec) Fault Code

Also written as GREENLEDFLASHINGRAPIDLY8SEC — same fault.

The Vokera Green LED flashing rapidly (8/sec) fault code means: your boiler is currently in a normal pre-heat mode designed to provide hot water more quickly; this is a standard operating feature and not a fault.. It appears on 2 Vokera models in our database.

Monitor it

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: SARA pre-heat function active (normal)
Typical repair cost £0 (including labour)

DIY fix possible

No action is required as the boiler is working correctly.If you wish to stop the flashing, you can turn the 'SARA' function off by rotating the temperature selector dial out of the 'SARA' range.

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Vokera models that show the Green LED flashing rapidly (8/sec) fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Vokera Green LED flashing rapidly (8/sec) 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 7 July 2026