Vaillant 0010020392, Installation And Maintenance Instructions Manual

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0020230529_05 ecoFIT sustain Installation and maintenance instructions
43
C Status codes
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Overview
Note
Since the code table is used for various products, some codes may not be visible for the product in question.
Status code Meaning
Displays in heating mode
S.0 Heating mode: No requirement
S.01 Heating mode: Fan prerun
S.02 Heating mode: Pump prerun
S.03 Heating mode: Burner 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: Temporary shutdown after heating procedure
Displays in domestic hot water mode
S.10 Domestic hot water mode: Requirement
S.11 Domestic hot water mode: Fan prerun
S.13 Domestic hot water mode: Burner 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
Display in comfort mode with warm start or domestic hot water mode with cylinder
S.20 Domestic hot water mode: Requirement
S.21 Domestic hot water mode: Fan prerun
S.22 Domestic hot water mode: Pump prerun
S.23 Domestic hot water mode: Burner 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 Domestic hot water mode: Temporary shutdown of the burner
Other displays
S.30 Room thermostat is blocking heating mode.
S.31 No heating demand: Summer mode, eBUS control, waiting period
S.32 Fan waiting time: Fan speed outside of the tolerance values
S.33 Forced fan operation until the pressure monitor is switched
S.34 Frost protection active
S.39 Underfloor heating contact open
S.41 Water pressure too high
S.42 Flue non-return flap closed
S.46 Frost protection mode (Comfort): Minimum load
S.53 Product in waiting period/operating block function due to water deficiency (flow/return spread too large)
S.54 Waiting period: Water deficiency in the circuit (flow/return spread too large)
S.76 Maintenance message: Check the water pressure
S.88 Product purging active
S.91 Maintenance: Demo mode
S.96 Automatic test programme: Return temperature sensor, heating demands blocked.
S.97 Automatic test programme: Water pressure sensor, heating demands blocked.