LG AMNW07GDBL1 Service Manual page 60

Display
Title
code
23 DC Link High / Low Volt
WARNING
Before checking PCB or each outdoor electric parts, wait for 3 minutes after the power is off. When measuring at standby state
of power supply, after checking the measurement mode of the meter, be careful of the short-circuits with other parts.
Yes
Recheck power and
installation condition
Copyright ©2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Cause of error
• DC Link Voltage is above
420Vdc
• DC Link Voltage is below
140Vdc
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Part 5. Trouble Shooting
Check point & Normal condition
• Check Input Voltage
• Check PCB DC Link voltage sensor parts
5V_GND 5V_GND 5V_GND
DC_LINK
LGE Internal Use Only