Viessmann Vitodens 100-W Fault Codes

CombiSystem Natural GasLPG 19-35 kW 2011-2021 Discontinued

Replaced by: Vitodens 100-W B1KF/B1HF

All 1 fault codes

Code	Severity	Plain English	DIY
Vitodens 200	Medium	Your boiler has lost communication with its internal control system and is running at a basic, reduced level to provide limited heat while waiting for a signal.	Engineer

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