Error Codes - LG ARNH963K2A2 Installation Manual

troublesHootING

Error Codes

Table 27: Hydro Kit Error Code Troubleshooting
Error Code Hydro Kit
Model
(K2, K3)
01
*Enabled for
Emergency
Operation
(K2, K3)
02
(K2, K3)
03
(K2, K3)
05
(K2, K3)
06
(K2, K3)
08
*Enabled for
Emergency
Operation
(K2, K3)
09
K3
11
K3
12
K2
13
(K2, K3)
14
(K2, K3)
15
(K2, K3)
16
17 (K2, K3)
*Enabled for
Emergency
Operation
76
Error Type
Air temperature sensor error
Gas side temperature sensor error
No communication between Hydro Kit Wall
Mounted Controller and Hydro Kit
Hydro Kit & outdoor (or water source) unit
communication error
Liquid side temperature sensor error
Indirect Hot Water Storage Tank temperature
sensor error
Indoor unit EEPROM error
Hydro Kit unit and inverter PCB communication
error
Inverter PCB error
Solar heating water circuit temperature sensor
error
Flow switch error
Water pipe overheated
Water inlet & outlet temperature sensor error
Water inlet temperature sensor error
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Cause
Air temperature sensor has disconnected or short
circuited. (Check the wiring, connection at the
CN-ROOM socket on the Hydro Kit unit PCB, then
check the thermistor.)
Temperature sensor monitoring the refrigerant
system gas line is disconnected or shorted.
Communication has been lost between the Hydro
Kit Wall Mounted Controller and the Hydro Kit for a
specific period of time.
Lost communication between the Hydro Kit and
the outdoor (water source) unit. Communication
cable is loose, disconnected or shorted.
Temperature sensor monitoring the refrigerant
system liquid line is disconnected or shorted.
A malfunction with the indirect storage tank hot
water temperature sensor was detected. The
sensor and/or cable may be disconnected or
shorted.
Communication error occurred between the
microprocessor on the Hydro Kit PCB board and
the onboard EEPROM chip. Check EEPROM chip
for bent pins and improper installation. If installed
OK, potential EEPROM failure.
Communication was lost between the Hydro Kit
main PCB and the R134a Inverter board. Check
for bent pins or loose connections in the wiring
harness plugs and socket connectors..
R134a circuit inverter board has reported a
malfunction.
Temperature sensor monitoring the solar heating
system's water circuit is disconnected or shorted.
Flow switch malfunction.
Hydro Kit leaving water has exceeded 185°F
(85°C).
Indication that both the refrigerant to water heat
exchanger's waterside inlet and outlet temperature
sensors simultaneously malfunctioned. Sensor
and/or cable may be disconnected or shorted.
The Hydro Kit refrigerant to water heat
exchanger's waterside inlet temperature sensor
malfunctioned. Sensor and/or cable may be
disconnected or shorted.