Low
Flame indicator (yellow) on Vaillant Turbomax VUW 242/1

This light simply shows that your boiler has successfully ignited and is operating normally.

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

Illuminates when flame is recognised by the flame monitoring system

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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