BoilerFaultCodes
Viessmann Boiler Fault Codes
1,458 fault codes across 16 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
02 04 05 06 08
Your boiler has shut itself down as a safety precaution because it has detected an overheating issue within the system.
Vitodens 200
Your boiler has detected a sequence of ignition or flame detection errors and has shut itself down for safety.
Vitodens 200
Your boiler has detected a sequence of ignition or flame detection errors and has shut itself down for safety.
Vitodens 200
Your boiler has detected a sequence of ignition or flame detection errors and has shut itself down for safety.
Vitodens 200
Your boiler has detected a sequence of ignition or flame detection errors and has shut itself down for safety.
Vitodens 200
All models
16 Viessmann boiler models
Vitodens 200
CombiSystem
Vitodens 100-W / 200-W
CombiSystem Discontinued
Vitodens
A8
Vitodens 200-W
CombiSystem
Vitodens 100-W
CombiSystem Discontinued
Vitodens 333
Combi Discontinued
Vitodens 050-W
Combi
Vitodens 111-W
Combi
Vitodens 222-W
Combi
Vitodens 300-W
Combi
Vitodens 333-F
Combi
Vitopend 100
Combi Discontinued
Vitopend 111
Combi Discontinued
Vitorond 100
Regular Discontinued
Vitola Biferral
Regular Discontinued