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Indoor BLDC Fan Motor
10
Lock
Check Point
Check the PCB during the Power on
1. Check the Voltage Red line to Black line
→ The Voltage is about [input voltage x 1.414]
→ if the Voltage does not come with the above Voltage,
→ Check the power input
→ Replace the PCB & Motor
2. Check the Voltage Black line to White
→ the Voltage is DC 15V
→ Check the Power input
→ Replace the motor
Check the Motor
1. Check the shaft
→ if the shaft is not turn smoothly, the Motor Power IC is defected
→ replace the motor
2. Check the motor resistance(if the shaft is turn smoothly, check the resistance)
→ Check Red line to Black line, Blue line to Black line
→ The resistance should infinite
→ replace the motor
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Only for training and service purposes
Cause of error
The Fan is not operated
properly
White
Yellow
Blue
Black Red
Check point & Normal condition
Check the Indoor fan locking
Fan motor
connector
Tester
- 55 -
Part 5. Trouble Shooting
LGE Internal Use Only
- Quick Links:
- Installation Functions
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