LG THERMA V AHNW16606B0, Service Manual, Page: 37 / 81

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Displaying the error Position of temperature sensor
ERROR Sensor 1 MD1:A1 – temperature sensor for inlet water (return line)
ERROR Sensor 2 MD1:A2 – temperature sensor for DHW
ERROR Sensor 3 MD1:A3 - temperature sensor of the entry of the refrigerant into the condenser
ERROR Sensor 4 MD1:A4 - temperature sensor of the exit of the refrigerant from the condenser
ERROR Sensor 5 MD1:A5 – temperature sensor for outdoor temperature
ERROR Sensor 6 MD1:A6 – temperature sensor for outlet water (supply line)
ERROR Sensor 7 MD1:A7 – temperature sensor of mixing-heating cycle 2
ERROR Sensor 10 MD2:A2 – temperature sensor of mixing-heating cycle 3
ERROR Sensor 11 MD2:A3 – temperature sensor of mixing-heating cycle 4
ERROR Sensor 12 MD2:A4 – buffer tank temperature sensor
ERROR Sensor 13 MD2:A5 – temperature sensor of alt. source
Displaying the error ERROR .Thermostat
Description of error Spatial corrector error
Response of internal unit con-
troller The device automatically restarts after the error is resolved
Possible causes • The communication cable between the internal unit and spatial thermostat is damaged,
• Faulty wiring of the spatial thermostat,
• Faulty setting of the spatial thermostat on the basic controller of the internal unit
Termotronic 3000.
Troubleshooting The communication cable is damaged:
• Check whether the connecting communication cable is in working order. In case an
error or damage is found, it is necessary to replace the communication cable.
Faulty wiring of the spatial thermostat:
• Check whether the wiring of the spatial thermostat is implemented properly - see
instructions for connecting the spatial thermostat. In case the wiring is not implemented
properly, correct it according to the instructions for connecting the spatial thermostat.
Faulty setting:
• Check the settings and correct them if needed. See instructions for connecting the spa-
tial thermostat.