LG Electronics LCN240CP Air Conditioner User Manual


 
38 Ceiling Cassette Air Conditioner
Troubleshooting Guide
Error Indicator
The function is to self-diagnoisis airconditioner and express the troubles identifically if there is any trouble.
Error mark is ON/OFF for the operation LED of evaporator body in the same manner as the following table.
If more than two troubles occur simultaneously, primarily the highest trouble fo error code is expressed.
After error occurrence, if error is released, error LED is also released simultaneously.
To operate again on the occurrence of error code, be sure to turn off the power and then turn on.
Having or not of error code is different from Model.
Self-diagnosis Function
Indoor Error
Error code
Description
MPS
Variable
MPS
Inverter
LED 1
(Red)
LED 2
(Green)
Indoor
Status
00 No Error ON
01 Indoor Room Thermistor Error 1 time OFF
02 Indoor In-Piping Error 2 times OFF
03 Remote controller Error 3 times OFF
04 Drain Pump Error 4 times OFF
05
Communication Error between In and Out
5 times OFF
06 Indoor Out-Piping Error 6 times OFF
Outdoor Error
Error Code
Description
MPS
Variable
MPS
Inverter
LED 1
(Red)
LED 2
(Green)
Indoor
Status
21 DC Peak(IPM Fault) 2 times 1 time ON
22 CT2(Max CT) 2 times 2 times OFF
23 DC Link Low Volt 2 times 3 times OFF
24 High/Low Pressure/Heatsink Switch 2 times 4 times OFF
25 Low Voltage / Over Voltage 2 times 5 times OFF
26 DC COMP Position Error 2 times 6 times OFF
27 PSC Fault Error 2 times 7 times OFF
28 DC Link High Volt 2 times 8 times OFF
32 D-Pipe High(INV) 3 times 2 times OFF
33 D-Pipe High(Normal) 3 times 3 times OFF
40 CT Sensor(open/short) 4 times OFF
41 INV. D-Pipe Thermistor Error(Open/Short) 4 times 1 times OFF
44 Outdoor Air Thermistor Error(Open/Short) 4 times 4 times OFF
45 Cond Pipe Thermistor Error(Open/Short) 4 times 5 times OFF
46 Suction Pipe Thermistor Error(Open/Short) 4 times 6 times OFF
47 Const. D-Pipe Thermistor Error(Open/Short) 4 times 7 times OFF
51 Capcity Error(High/Low) 5 times 1 times OFF
53 Signal Error(Indoor_Outdoor) 5 times 3 times OFF
54 Phase Error 5 times 4 times OFF
60 EEPROM Check Sum Error 6 times OFF
61 Cond Pipe High 6 times 1 times OFF
62 Heatsink High 6 times 2 times OFF
63 Cond Pipe Low 6 times 3 times OFF
65 Heatsink Thermistor Error(Open/Short)
6 times 5 times OFF