Vaillant Status Codes

Vaillant EcoTEC Plus Regular Gas Boiler Error Codes (Status Codes)

Vaillant EcoTEC Plus Regular Gas Boiler Error Codes Fault Code Possible Cause S.20 Warnstar demand S.21 Fan running S.22 Pump running S.23 Ignition sequence S.24 Burner ignited S.25 Fan and water pump running S.26 Fan overrun S.27 Pump overrun S.28 Anti-cycling mode S.30 No heating demand from external controls S.31 Central heating thermostat knob turned …

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Vaillant Boiler Error Codes (Status Codes)

Vaillant EcoTEC Pro / EcoTEC Plus Error Codes Listed below are the most common error codes that you might see on your Vaillant EcoTEC Plus boiler. Fault Code Possible Cause S.00 Heating mode error – no heat demand S.01 Heating mode fan start-up S.02 Heating mode error – water pump running S.03 Heating mode – …

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