Installation Manual
21
ENGLISH
Self-diagnosis Function
If abnormal voltage is supplied, the protection circuits will turn off the product in order to prevent
the component damage. The product will automatically restart after 3 minutes.
Outdoor Error
Ex) Error 21 (DC Peak)
MR24UY3J
MR36UY3J
Self-diagnosis Function
Error Indicator (Outdoor)
2times
◑
1time
◑
OFF
2times
◑
2times
◑
OFF
2times
◑
3times
◑
OFF
2times
◑
4times
◑
OFF
2times
◑
6times
◑
OFF
2times
◑
7times
◑
OFF
2times
◑
9times
◑
OFF
3times
◑
2times
◑
OFF
4times
◑
0
OFF
4times
◑
1time
◑
OFF
4times
◑
3times
◑
OFF
4times
◑
4times
◑
OFF
4times
◑
5times
◑
OFF
4times
◑
6times
◑
OFF
4times
◑
8time
◑
OFF
5times
◑
1times
◑
OFF
5times
◑
3times
◑
OFF
6times
◑
0
OFF
6times
◑
1times
◑
OFF
6times
◑
2times
◑
OFF
6times
◑
5times
◑
OFF
6times
◑
7times
◑
OFF
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
PFC Fault Error
29
Comp Over Current
32
D-Pipe High(Inv.)
40
CT Sensor(Open/Short)
41
Inv. D-Pipe Th Error(Open/Short)
43
High Pressure Sensor(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)
Error Code
Description
LED 1
(Red)
LED 2
(Green)
Indoor
status
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)
