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Fan operation indicator on Vaillant Turbomax VU 182

Your boiler's fan system is running correctly to safely remove exhaust gases, and the indicator light is simply confirming that this part of the startup process is working as intended.

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.

What the manual says

Manufacturer manual

Once the fan and flue system has proved itself, the fan operation indicator will light.

From this model's manual
Verified against the Vaillant Turbomax Vu 182 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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