LG multi V ARUN Series Installation Manual page 87

Sensor Check Error Code Display
In case error occurs during sensor checking process, error display is as shown below.
Following contents are displayed one after the other on the main PCB of master outdoor unit.
Indoor sensor error :
319
Outdoor sensor error :
309
Displaying error content
Displaying error content
■ Indoor unit error display
1.1st and 2nd number represents indoor unit number.
2. Last number represents sensor.
1: Pipe inlet temperature sensor
2: Pipe outlet temperature sensor
3: Air temperature sensor
■ Displaying outdoor unit error
1.1st and 2nd number represents error content(code).
2.Last number represents outdoor unit number.
1 : Master
2 : Slave 1
3 : Slave 2
4 : Slave 3
* Indoor unit number follows auto addressing number.
(To check the LGMV Data)
Table 1. ODU Sensor Error Code
No. Sensor type
1 Outdoor Air Temperature
2 Heat Exchanger Temperature
5 Liquid Pipe Temperature
6 SC pipe out
7 Suction Temperature
8 Inverter Comp. Discharge Temperature
9 Constant Comp.1 Discharge Temperature
10 Constant Comp.2 Discharge Temperature
11 High Pressure
12 Low Pressure
14 IPM temperature
Table 2. IDU Sensor Error Code
No.
1 Pipe In Temperature
2 Pipe Out Temperature
3 Indoor Air Temperature
* 5 number of errors is displayed
continuously and repeatedly.
Classification
ex) Indoor unit No. 2 Pipe inlet temperature sensor
error
ex) Outdoor Master Unit Liquid pipe temperature
sensor error
ex) IDU No.2 Pipe inlet temperature sensor error and Master
ODU suction temperature sensor, Slave 3 high pressure
sensor error
Caution
1. Up to 5 number of errors is displayed continuously and
repeatedly. In case 5 error occurs, again perform sensor
checking after solving errors.
2. IDU in which error occurred operates air circulation mode.
Test Run
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Installation Manual 87