C Status Codes - Overview - Vaillant ecoTEC exclusive 620 Operating Instructions Manual

Fault
Product does not start There is a fault in the flue gas route (fault message:
up: F.36/F.37):
– –
No hot water
– –
Heating remains cold
Hot water generation The external controller is not set correctly.
functioning correctly;
heating does not start
up.
Status codes – Overview
C
Status codes that are not listed here can be viewed in the installation instructions.
Status code
S.00 Heating: No heat demand
S.01 Heating mode: Fan start-up
S.02 Heating mode: Pump pre-run
S.03 Heating mode: Ignition
S.04 Heating mode: Burner on
S.05 Ventilator and pump overrun
S.06 Heating mode: Fan overrun
S.07 Heating mode: Pump overrun
S.08 Heating, remaining anti-cycling time xx mins
S.09 Heating mode: Measuring program
Displays in Comfort mode with warm start or hot water handling mode with cylinder
S.20 Hot water requirement
S.21 DHW mode: Fan start-up
S.22 DHW mode: Pump pre-run
S.23 DHW mode: Ignition
S.24 DHW mode: Burner on
S.25 DHW mode: Pump/fan overrun
S.26 DHW mode: Fan overrun
S.27 DHW mode: Pump overrun
S.28 Hot water burner anti-cycling time
S.29 DHW mode: Measuring program
S.30 Room thermostat (RT) is blocking heating mode
S.31 Summer mode active
S.34 Frost protection mode, frost protection
S.37 Waiting time: Deviation in fan speed
S.40 Comfort protection active
S.57 Waiting time: Measuring program
S.58 Modulation limitation due to noise/wind
S.76 System pressure too low. Top up water.
0020193967_00 ecoTEC exclusive Operating instructions
Cause
The symbols XXXXX are shown in the display.
The red LED is lit continuously.
Displays in heating mode
Other displays
Have your competent person rectify the fault.
Set the external controller correctly (→ Controller
operating instructions).
Meaning
Appendix
Measure
13