Error 01/02/06 - LG Multi V Manual

Troubleshooting Guide
Error
Error Type
No.
01 Indoor unit air sensor error
02 Indoor unit pipe inlet sensor error
06 Indoor unit pipe outlet sensor error
I Error diagnosis and countermeasure flow chart
Is sensor properly
connected to PCB?
Yes
Is the resistance value
of sensor normal?*
Yes
Change the PCB
* In case the value is more than 100kΩ (open) or less than 100Ω (short), Error occurs
Refer: Resistance value maybe change according to temperature of temp sensor,
It shows according to criteria of current temperature(±5% margin) ➔ Normal
Air temp sensor: 10°C(50°F) = 20.7kΩ : 25°C(77°F)= 10kΩ : 50°C(122°F)= 3.4kΩ
Pipe temp sensor: 10°C(50°F) = 10kΩ : 25°C(77°F)= 5kΩ : 50°C(122°F)= 1.8kΩ
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Only for training and service purposes
Indoor unit sensor is
No
Connect properly to PCB
No
Change the sensor
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Error Point
1. Indoor unit PCB wrong connection
2. Indoor unit PCB failure
open/short
3. Sensor problem (main reason)
CN-ROOM : Indoor air temp sensor
CN-PIPE2 : Pipe outlet temp sensor
CN-PIPE1 : Pipe inlet temp sensor
Measure the resistance of outlet pipe temp sensor.
Main Reasons
LGE Internal Use Only