LG Multi V Service Manual

1. Check alien substance in the Fan.
2. Check the imprisonment of fan Ɗ Please turn Fan, if fan is turn, ok.
3. Check Motor Wire connection
(Motor Ǝ Motor PCB Ǝ Inverter or Main PCB)
4. Check the Motor. Refer to the below.
■ How to check the outdoor fan motor of BLDC
Tester
Normal resistance (±10%)
ڡ ڣ
ڣ ڥ
45 Ω
45 Ω
45 Ω
ڡڥ
Checking Outdoor Fan Lock
ڡڣڥ
Motor Wire Connection
Motor1
Inverter PCB Motor PCB
Motor2
Checking Method for Key Components
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2.8 Temperature Sensor
1) Outdoor temperature sensor : TH1
2) Discharge pipe(D-pipe) temperature sensor : TH2
1. Check the condition of installation and the contact of temperature sensor.
2. Check whether the connector contact of temperature sensor is normal.
3. Measure the resistance of temperature sensor.
3) Pipe temperature sensor : TH3
TH1 TH2 TH3
Resistance
10 kΩ±1 %(25 °C) 200 kΩ±1 %(25 °C) 5 kΩ±1 %(25 °C)
1.07 kΩ±3.3 %(85 °C) 28 kΩ±7.7 %(85 °C) 535 Ω±3.3 %(85 °C)
2.9 Fan lock and Fan IPM Check

LG Multi V Specifications

General

Type	VRF (Variable Refrigerant Flow)
Compressor Type	Scroll
Refrigerant	R410A
Energy Efficiency	High
Control System	Centralized and individual control options
Indoor Units	Multiple types available (e.g., ceiling cassette, wall-mounted, ducted)