LG APNH2433LAD, Svc Manual

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Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
5. Trouble Shooting
1.3 Error Indicator (Outdoor)
Outdoor Error
Ex) Error 21 (DC Peack)
1 Time 1 Time 1 Time
2 Times 2 Times 2 Times
1 Sec.
2 Sec. 2 Sec.
1 Sec. 1 Sec.
LED01G
(RED)
LED02G
(GREEN)
CAUTION
Precaution in Service or Check
Even after stopping the operation of product, it takes some time to discharge the remaining electricity of the electrolytic
capacitor that was charged early.
Before conducting a checking or repairing job, pull out the plug out of the outlet and make sure that the lamp on the
control board outdoor unit is off.
Outdoor Error
Error Code
Description
INV TPS
LED 1
(Red)
LED 2
(Green)
Indoor
Status
21 DC Peak (IPM Fault) 2times 1time OFF
22 CT 2(Max CT) 2times 2times OFF
23 DC Link Low Volt. 2times 3times OFF
24 L_P/Heater Sink 2times 4times OFF
25 Low voltage / Over voltage 2times 5times OFF
26 DC Comp Position Error 2times 6times OFF
27 PFC/PSC Fault Error 2times 7times OFF
28 DC Link High Volt 2times 8times OFF
29 COMP Over Current - 2times 9times OFF
32 D-Pipe High (INV) 3times 2times OFF
33 D-Pipe High (Normal) 3times 3times OFF
39 Communication Error - 3times 9times OFF
40 CT Sensor (Open/Short) 4times O OFF
41 INV. D-PipeTh Error(Open/Short) 4times 1time OFF
44 Outdoor air Th Error(Open/Short) 4times 4times OFF
45 Cond. Pipe Th Error(Open/Short) 4times 5times OFF
46 Suction Pipe Error(Open/Short) 4times 6times OFF
47 Const D-pipe Th Error(Open/Short) 4times 7times OFF
51 Capacity over 5times 1time OFF
52 Signal Error (DSP Board
↔
Main Board) 5times 2time OFF
53 Signal error (Indoor
↔
Outdoor) 5times 3times OFF
60 EEPROM Check Sum Error 6times O OFF
61 Cond. Pipe High 6times 1time OFF
62 Heatsink High 6times 2times OFF
63 Cond. Pipe Low 6times 3times OFF
65 Heatsoml Th error (Open/Short) 6times 5times OFF
67 BLDC motor fan lock (outdoor) 6times 7times OFF
73 PFC Fault Error (S/W) - 7times 3times OFF