LG Multi-Inverter - Self-Diagnosis Function

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. Trouble Shooting
1. Self-diagnosis Function
1.1 Error Indicator (Indoor)
• The function is to self-diagnosis air conditioner and express the troubles if there is any trouble.
• Error mark is displayed on display window of indoor units and wired-remote controller, and LED of outdoor unit control
board.
• If more than two troubles occur simultaneously, lower number of error code is first displayed.
• After error occurs, if error is released, error LED is also released simultaneously.
1 Time 1 Time 1 Time
2 Times2 Times2 Times
10 digit
LED
1 digit
LED
1 Sec.
2 Sec. 2 Sec.
1 Sec.
1 Sec.
1 digit 10 digit
Ex) Error 21 (DC Peak)
1.2 Indoor Error
Case of errorContents
Error
code
Open / ShortOutlet pipe sensor06
Different operation modeDifferent operation mode07
Communication Poorly
Float switch Open
Communication Poorly
Open / Short
Open / ShortAir sensor (open/short)01
Inlet pipe sensor02
Communication(Indoor ↔ Wired R/Control)03
Drain pump/ Float switch04
Communication(Indoor ↔ Outdoor)05
Off
Off
Off
Off
Off
Off
Off
Indoor
Status