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Part 5. Trouble Shooting
- 55 -
Copyright ©2017 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Check the resistance
Ω
0Ω
CN Float
CN-Float
CN-D/PUMP
04
Drain pump
/ Float switch
• Float switch Open.
(Normal : short)
• The connection of wire(Drain pump/ Float switch)
• Drain pump power input. (230V)
• Drain tube installation.
• Indoor unit installation. (Inclination)
Display
code
Title Cause of error Check point & Normal condition
Check Point
1. Check the wire connection. (Open, Soldered poorly) ’ Repair the connection or change the PCB.
2. Check the resistance of float switch (Abnormal : Open, Normal : short) ’ Check the float switch.
3. Check the level of water
4. Check the volt. Of Drain pump power supply. (AC 230V) ’ Repair or Change the main PCB.
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