Low
00:3 on Viessmann Vitodens 200-W

Your boiler is correctly operating in a specific configuration that manages one heating zone without providing domestic 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 4: 1 mixer circuit M2, without DHW heating

Engineer required

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

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