Self-Diagnosis Function - LG Single "A" Service Manual

5. 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.
Ex) Error 21 (DC Peak)
10 digit
LED
1 digit
LED
1.2 Indoor Error
Error code
00 No Error
01 Indoor Room themistor error
02 Indoor in-piping sensor error
03 Remote controller error
04 Drain Pump error
05 Communcation error between in and out
06 Indoor Out-Piping sensor error
07 Differnt mode operation
09 Checksum error
10 BLDC motor fan lock (indoor)
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1 digit 10 digit
2 Times
1 Sec.
1 Time
2 Sec.
Description
- 78 -
2 Times
1 Sec.
1 Time
2 Sec.
LED 1
INV TPS
(Red)
2 Times
1 Sec.
1 Time
LED 2 Indoor
(Green) Status
ON
1time OFF
2times OFF
3times OFF
4times OFF
5times OFF
6times OFF
7times OFF
9times OFF
10times OFF
LGE Internal Use Only