Low
00:6 on Viessmann Vitodens 333 WS3A

This code indicates your boiler's system configuration settings have been detected, and it is functioning as intended based on your current home heating setup.

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

System design 3, 4: 1 heating circuit without mixer A1, 1 mixer circuit M2 with DHW heating

From this model's manual
Verified against the Viessmann/Viessmann Vitodens 333 Ws3a 5862566 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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Boiler cover options

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All 75 fault codes on the Vitodens 333 WS3A

Seeing a different code? Every code this model can display, in one place.

00:200:40F1A040606:...07089A9B9C9F10182025262830353840485050:0515858:059929394A2A5A7b0b1b4b5b7b8bAbCbdbEbFC2C5C6C7CdCECFdAdbdEE4E5E6ELF0F1F2F3F4F7F8F9FAFdFEFillingVenting

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