BoilerFaultCodes.com

Viessmann Vitodens 200 Fault Codes

CombiSystem Natural GasLPG 1.9-60 kW 1999-present

All 18 fault codes

Code Severity Plain English
0A High Your boiler has detected an issue with the gas pressure or a component failure and has shut down as a safety precaution.
0D High Your boiler has detected an internal communication error and has shut itself down as a safety precaution.
1A, 1B High Your boiler has shut down because it is struggling to discharge exhaust fumes safely or is detecting a significant lack of air flow.
1F High Your boiler has stopped working because the burner isn't lighting correctly, likely due to a problem with the internal airflow or the ignition system.
02 High Your boiler has shut itself down as a safety precaution because it has detected an overheating issue within the system.
04, 05, 06, 08 High Your boiler has detected a sequence of ignition or flame detection errors and has shut itself down for safety.
07, 09 High Your boiler has detected a sequence error or a flame signal where there shouldn't be one, causing the burner to shut down completely for safety.
25 High Your boiler is getting too hot too quickly and is shutting itself down to prevent damage.
26 High Your boiler's computer has become stuck in a repeating internal test sequence and is failing to move into its normal heating mode.
35 High Your boiler has failed to ignite or stay lit, meaning your heating and hot water have stopped working.
A2 High Your boiler has sensed that the internal pump is malfunctioning or water is not circulating correctly, which has caused the system to stop as a safety precaution.
A5 High Your boiler has detected that the water pump is likely stuck or not moving water correctly, which means the system cannot heat up safely.
Vitodens 100-W High Your boiler has stopped working because it has detected a serious issue during the ignition or combustion process and has shut down for safety.
Vitodens 100-W High Your boiler has stopped working because it has detected a problem with the burner system and has shut down as a safety precaution.
Vitodens 200 High Your boiler has stopped working because the internal fan is moving at the wrong speed, preventing the burner from starting safely.
Vitodens 200 High Your boiler has detected a problem with the burner and has shut itself down for safety purposes, resulting in no heating or hot water until it is fixed.
Vitodens 222-F High Your boiler's internal computer has encountered a memory or configuration error and is struggling to correctly manage the heating system settings.
Vitotronic 200 / 300 Low Your boiler is operating correctly and there are no faults to report.

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