Regular Gas Boiler

Vaillant EcoTEC Plus Gas Boiler (Program Mode Codes)

Vaillant EcoTEC Plus Gas Boiler (Program Mode Codes)   Display Meaning P.00 Bleeding test program. The heating circuit and hot water circuit (combination boiler only) is bled via the automatic air vent (the cap on the automatic air vent must be loosened). P.01 Test program where the appliance is operated in full load after successful …

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Vaillant EcoTEC Plus Regular Gas Boiler (Diagnostic Codes)

Vaillant EcoTEC Plus Regular Gas Boiler Error Codes (Diagnostic Codes) D.0 Heating part load error D.1 Water pump overrun – time for heat mode D.2 Max burner anti-cycling period at 20c flow temperature D.3 Hot water flow temperature reading D.4 Current temperature for warm stat sensor D.7 Warm start temperature target value D.8 External controls …

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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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