C Status Codes - Overview - Vaillant VC 156/5-7 Operating Instructions Manual

Appendix
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 code Parameter
Heating mode
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 Heating mode: Pump/fan overrun
S.06 Heating mode: Fan overrun
S.07 Heating mode: Pump overrun
S.08 Heating mode: Anti-cycling time
S.09 Heating mode: Measuring program
DHW mode
S.10 DHW demand
S.11 DHW mode: Fan start-up
S.13 DHW mode: Ignition
S.14 DHW mode: Burner on
S.15 DHW mode: Pump/fan overrun
S.16 DHW mode: Fan overrun
S.17 DHW mode: Pump overrun
S.19 DHW mode: Measuring program
Comfort mode, warm start or hot water handling mode with actoSTOR
S.20 DHW demand
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 DHW anti-cycling time
S.29 DHW mode: Measuring program
Others
S.30 No heat demand: Controller
S.31 No heat demand: Summer mode
S.32 Waiting time deviation: Fan speed
S.33 Waiting time: Air monitor
S.34 Heating mode: Frost protection
14
Cause
The symbols XXXXX are shown in the display.
The red LED is lit continuously.
Measure
Have your competent person rectify the fault.
Set the external controller correctly (→ Controller
operating instructions).
Meaning
Heating: No heat demand
Heating mode: Fan start-up
Heating mode: Pump pre-run
Heating mode: Ignition
Heating mode: Burner on
Heating mode: Pump/fan overrun
Heating mode: Fan overrun
Heating mode: Pump overrun
Heating mode: Remaining anti-cycling time
Heating mode: Measuring program
Hot water requirement via flow sensor
DHW mode: Fan start-up
DHW mode: Ignition
DHW mode: Burner on
DHW mode: Pump/fan overrun
DHW mode: Fan overrun
DHW mode: Pump overrun
DHW mode: Measuring program
DHW demand
DHW mode: Fan start-up
DHW mode: Pump pre-run
DHW mode: Ignition
DHW mode: Burner on
DHW mode: Pump/fan overrun
DHW mode: Fan overrun
DHW mode: Pump overrun
Hot water burner anti-cycling time
DHW mode: Measuring program
Room thermostat (RT) is blocking heating mode
Summer mode active or no heat requirement from eBUS
controller
Waiting period because of fan speed deviation
Waiting period: Air pressure sensor/switch reports that
the pressure signal is too low
Frost protection mode active
Operating instructions ecoTEC exclusive 0020189874_03