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72 Outdoor Unit
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
* 5 number of errors is displayed
continuously and repeatedly.
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)
ex) Indoor unit No. 2 Pipe inlet temperature sensor
error
ex) Outdoor Master Unit Liquid pipe temperature
sensor error
1 Outdoor Air Temperature
2 Heat Exchanger 1
3 Heat Exchanger 2
4 Inverter Comp. Discharge Temperature
5 Const. Speed. Comp. Discharge Temperature
6 Suction Temperature
7 Liquid Pipe Temperature
8 SC pipe in
9 SC pipe out
10 High Pressure Sensor
11 Low Pressure Sensor
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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