Low
00:2 on Viessmann Vitodens 333

This code is not actually an error; it is simply a display message confirming your boiler is correctly set up to manage your standard heating and hot water.

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

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

Engineer required

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

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