BoilerFaultCodes
Viessmann Boiler Fault Codes
1,344 fault codes across 20 Viessmann boiler models — explained in plain English.
Premium German heating manufacturer. Known for high efficiency and build quality.
Just want the most common Viessmann problems?
The top 8 faults across the whole Viessmann range — causes, DIY checks, repair costs.
High-severity Viessmann fault codes
04 06 08 07 1A
Your boiler has detected a sequence of ignition or flame detection errors and has shut itself down for safety.
Vitodens 200-W
Your boiler has detected a sequence of ignition or flame detection errors and has shut itself down for safety.
Vitodens 200-W
Your boiler has detected a sequence of ignition or flame detection errors and has shut itself down for safety.
Vitodens 200-W
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.
Vitodens 200-W
Your boiler has shut down because it is struggling to discharge exhaust fumes safely or is detecting a significant lack of air flow.
Vitodens 200-W
All models
20 Viessmann boiler models
Vitodens 200-W
CombiSystem
Vitodens 100-W
CombiSystem
Vitodens 050-W
Combi
Vitodens 111-W
Combi
Vitodens 222-F
Combi Discontinued
Vitodens 300-W
Combi
Vitodens 333-F
Combi
Vitopend 100
Combi Discontinued
Vitorond 100
Regular Discontinued
Vitola Biferral
Regular Discontinued
Vitodens 100-W WB1B
CombiSystem Discontinued
Vitodens 100-W WB1A
Regular Discontinued
Vitodens 050-W BPJD
Combi Discontinued
Vitodens 025-W
Combi
Vitodens 100-W B1GA
Regular
Vitodens 200-W B2HF System
System
Vitodens 222-F B2TF
Combi
Vitodens 242-F FB2B
Combi Discontinued
Vitodens 200-W B2KF Combi
Combi
Vitodens 242-F B2UA
System Discontinued
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