Ariston NIMBUS COMPACT S NET Manual page 94

INTERNAL UNIT ERROR LIST
ERROR DESCRIPTION
1 14 Outdoor Sensor Damaged
4 20* Bus supply overload
7 01 Zone1 Send Probe Damaged
7 02 Zone2 Send Probe Damaged
7 03 Zone3 Send Probe Damaged (N/A)
7 11 Zone1 Return Probe Damaged
7 12 Zone2 Return Probe Damaged
7 13 Zone3 Return Probe Damaged (N/A)
7 22 Zone2 Overheat
7 23 Zone3 Overheat
9 02 System flow sensor damaged
9 03 System return sensor damaged
9 10 HP communication error
9 23 Low pressure error
9 24 Ebus Communication error between EM and TDM
9 33 Overheat
9 34 DHW Tank sensor damaged
9 35 Tank overtemperature
9 36 Floor Thermostat 1 error
9 37 No circulation error
9 38 Anode Fault
9 39
HP error **
9 40 Hydraulic scheme not defined
9 41 HIV IN1 not defined
9 42 HIV IN2 not defined
9 44 Cooling overtemperature
9 45 Flow switch stuck
9 46 HP compressor error
9 55 Water flow switch
9 58 Buffer temperature sensor
9 59 Buffer over-temperature
P2 circulator configuration not aligned with
9 70 hydraulics. Check for auxiliary pump configu-
ration
9 71 External unit Version undefined
2 P2 Antilegionella not completed
2 P3 DHW boost: comfort setpoint not reached
2 P4 First thermostat of resistance (auto)
94 / GB
TROUBLESHOOTING
Activation of thermoregulation based on outdoor sensor and outdoor
sensor not connected or damaged
Flow sensor not connected or damaged
Return sensor not connected or damaged
- Check the wiring connection of the modbus cable.
- Red led on TDM not blinking-> No comunication, verify the TDM and
Inverter's control boards correct operation
Check water leakage of the hydraulic circuit
- Water pressure switch damaged
- Wiring of water pressure switch damaged
- Check wiring connection between TDM end Energy Manager
- Check water flow of the heating circuit
- DHW tank sensor not connected or damaged
- Check 3-way valve (DIV1) blocked in DHW position
- Check water circulation of the underfloor zone
- Check main circulation activation
- Check water flow sensor detection by par. 17.11.3
Check anode connection
- Check water presence in the tank
- Check anode status
See inverter error list
- Hydraulic scheme not selected by parameter 17.2.0
Function not selected by parameter 17.1.0
Function not selected by parameter 17.1.1
- Check water flow of the cooling circuit
Check if main circulation is active before the heat request
- Check the water flow detection by water flow sensor (see par. 17.11.3)
before the heat request
Check compressor frequency (par 17.12.1) after the end of heat request
Check the flow temperature sensor and return temperature sensor place-
ment.
Buffer charge inhibited
Buffer charge inhibited
Warning displayed for 30 seconds and stored in the historical
Warning displayed for 30 seconds and stored in the historical
Antilegionella setpoint temperature not reached in 6 hours
- Check DHW tapping during antilegionella cycle
- Check flow temperature during antilegionella cycle
- Check heating resistors activation
DHW comfort setpoint not reached during boost cycle.
- Check DHW tapping during boost cycle
- Check flow temperature during boost cycle
- Check heating resistors activation
- Check main circulation activation
- Check water flow by par 17.11.3
- Check safety thermostat status and wirings