LG ACHH Series Manual page 93

Error number Errors
Outdoor unit liquid
113 pipe (condenser)
(11 → 113)
temperature sen-
sor error
Error number Errors
Outdoor Unit
Subcooling
114
Inlet Temperature
Sensor Error
Error number Errors
Outdoor Unit
Subcooling
115
Outlet
(11 → 115)
Temperature
Sensor Error
n Error diagnosis and countermeasure flow chart
Is temperature sensor
connector connections
are normal?
Yes
Is the value of temperature
sensor resistance normal?*
Yes
Replace outdoor unit PCB
* Sensor resistance 100 kΩover (open) or 100 Ω below (short) will generate error
Note: Temperate sensor resistance vary with temperature, So compare temperature sensor resistance value
according to outdoor unit temperature by referring below table (±5% tolerance)
Air temperature sensor: 10°C = 20.7kΩ : 25°C = 10kΩ : 50°C= 3.4kΩ
Pipe temperature sensor: 10°C = 10kΩ : 25°C = 5kΩ : 50°C= 1.8kΩ
Meaning
Abnormal sensor resis-
tance value (Open/Short)
Meaning
Abnormal sensor resis-
tance value (Open/Short)
Meaning
Abnormal sensor resis-
tance value (Open/Short)
No
Check and correct connection
No
Replace sensor
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Main cause of occurrence
1. Defective temperature sensor connection
2. Defective temperature sensor (Open / Short)
3. Defective outdoor unit PCB
Main cause of occurrence
1. Defective temperature sensor connecter connection
2. Defective temperature sensor (Open / Short)
3. Defective outdoor PCB
Main cause of occurrence
1. Defective temperature sensor connecter connection
2. Defective temperature sensor (Open / Short)
3. Defective outdoor PCB
Error code check