Night Silent Operation Setting; Self-Diagnosis Function - LG UU21WH Installation Manual

Night Silent Operation Setting

Night Silent Operation Setting
1. Open the panel of outdoor unit.
2. Set the DIP SW01N as below Fig.
DIP SW01N
DIP Switch2
ON
1 2 3 4
3. Close the panel
WARNING: Do not open the panel when operating
the product.

Self-diagnosis Function

Error Indicator (Outdoor)
Outdoor Unit Error
Ex) Error 21
(DC Peak)
Error Code
21 DC Peak(IPM Fault)
22 Max. CT(CT2)
23 DC Link Low Volt.
24 Pressure switch/Heater Sink.
26 DC Comp Position Error
27 PSC Fault Error
28 DC Link High Volt.
29 Comp Over Current
32 D-Pipe High(Inv.)
41 Inv. D-Pipe Th Error(Open/Short)
44 Outdoor air Th Error(Open/Short)
45 Cond. Middle Pipe Th Error(Open/Short)
46 Suction Pipe Th Error(Open/Short)
48 Cond. Out-Pipe Th Error(Open/Short)
51 Capacity over
53 Communication Error(Indoor÷Outdoor)
60 EEPROM Error(Outdoor)
61 Cond. Middle Pipe High
62 Heatsink Error(High)
65 Heatsink Th Error(Open/Short)
67 BLDC motor fan lock(Outdoor)
73 PFC Fault Error(S/W)
h Repeatedly after LED1 is turned on and off as the Error code number of tens digit, LED2 is turned on and
off as the Error code number of single-digit.
16
ON Night Silent Operation -ON
OFF Night Silent Operation - OFF
2 Times
LED01G
(RED)
1 Sec.
1 Time
LED02G
(GREEN)
2 Sec.
Description
Function
2 Times 2 Times
1 Sec. 1 Sec.
1 Time 1 Time
2 Sec.
LED 1 (Red) LED 2 (Green)
2times ◑ 1time ◑
2times ◑ 2times ◑
2times ◑ 3times ◑
2times ◑ 4times ◑
2times ◑ 6times ◑
2times ◑ 7times ◑
2times ◑ 8times ◑
2times ◑ 9times ◑
3times ◑ 2times ◑
4times ◑ 1time ◑
4times ◑ 4times ◑
4times ◑ 5times ◑
4times ◑ 6times ◑
4times ◑ 8times ◑
5times ◑ 1time ◑
5times ◑ 3times ◑
6times ◑
0
6times ◑ 1time ◑
6times ◑ 2times ◑
6times ◑ 5times ◑
6times ◑ 7times ◑
7times ◑ 3times ◑
Indoor status
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF