LG ARUV Series Service Manual page 293

Error No. Error Type
201(HR unit1)
205(HR unit2)
209(HR unit3)
213(HR unit4)
HR unit liquid pipe tem-
217(HR unit5) perature sensor error
221(HR unit6)
225(HR unit7)
229(HR unit8)
Error No.
202(HR unit1)
206(HR unit2)
210(HR unit3)
HR unit
214(HR unit4)
Sub-cooling inlet pipe
218(HR unit5)
temperature sensor
222(HR unit6)
error
226(HR unit7)
230(HR unit8)
Error No.
203(HR unit1)
207(HR unit2)
211(HR unit3)
HR unit
215(HR unit4)
Sub-cooling discharge
219(HR unit5)
pipe temperature sensor
223(HR unit6)
error
227(HR unit7)
231(HR unit8)
Error diagnosis and countermeasure flow chart
1) Check connection condition of temperature sensor and lead cable
2) Is value of temperature sensor normal? If not replace sensor
- Piping temperature sensor : 10°C = 10kΩ : 25°C= 5kΩ : 50°C= 1.8kΩ
3) If connection of sensor and value is correct, replace outdoor unit PCB
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Only for training and service purposes
Abnormal value of sensor
measurement (Open / Short)
Error Type
Abnormal value of sensor
measurement(Open / Short )
Error Type
Abnormal value of sensor
measurement(Open / Short)
Error Point
• Defective temperature sensor connection
• Defective temperature sensor
(Open/Short)
• Defective outdoor unit PCB
Error Point
• Defective temperature sensor connection
• Defective temperature sensor
(Open/Short)
• Defective outdoor unit PCB
Error Point
• Defective temperature sensor connection
• Defective temperature sensor
(Open/Short)
• Defective outdoor unit PCB
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Troubleshooting Guide
Main Reasons
Main Reasons
Main Reasons
LGE Internal Use Only