Low
YELLOW LED LIGHT on Vokera Option

Your boiler is currently in a manual testing mode used by engineers during servicing, rather than being in its normal operating state.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Analysis test mode active (service function)

DIY fix possible

Locate the reset or mode selection dial/button on your control panelSwitch the boiler off and back on again at the mains power supplyEnsure the internal service toggle switch has not been accidentally bumped or left in the testing position

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