22
For remote
type, flash
times
1
2
3
4
5
6
8
9
10
11
12
13
15
17
18
19
20
Failure description
Indoor ambient temp. sensor failure
Indoor coil temp. sensor failure
Outdoor ambient temp. sensor failure
Outdoor coil temp. sensor failure/Compressor
dischar
ging temp. sensor abnormal
Over
-current protection /
Power supply abnormal
High/Low pressure abnormal
Communication between wired
controller and indoor abnormal
Communication between indoor and outdoor abnormal
Drainage system abnormal
Outside alarm signal input
Gas pipe temp. sensor abnormal
T
emperature protection malfunction
EEPROM abnormal
Compressor overheat
Abnormal mode
Outdoor coil B(suction temp sensor
-for MR
V
II)
Outdoor dischar
ging B(oil temp sensor
-for MR
V
II)
Reason
Sensor broken down or short circuit for more than 2m continuously
Sensor broken down or short circuit for more than 2m continuously
Sensor broken down or short circuit for more than 2m continuously
Sensor broken down or short circuit for more than 2m continuously
CT
check abnormal 3 times in 30m
/Fault phase, short of phase, out of balance greatly
High pressure switch acts 3 times in 30m/Low pressure switch acts
in normal running
Communication abnormal for more than 4m continuously
Communication abnormal for more than 4m continuously
Float switch broken down for more than 25m continuously
Outside signal broken down for more than 10s
Sensor broken down or short circuit for more than 2m continuously
Solenoid valve act incorrectly 3 times continuously
EEPROM data missing
The dischar
ging temperature is higher than 120degree
Indoor operation mode is dif
ferent with the running indoor unit.
Sensor broken down or short circuit for more than 2m continuously
Sensor broken down or short circuit for more than 2m continuously
Remarks
Failure code
on wired
controller
01(01H)
02(02H)
74(4AH)
73(49H)
72(48H)
83(53H)
07(07H)
06(06H)
08(08H)
11(0BH)
03(03H)
13(0DH)
05(05H)
80(50H)
12(0CH)
75(4BH)
77(4DH)
For central
control,
failure code
01D
02D
11D
12D
10D
14D
06D
05D
21D
30D
20D
31D
17D
15D
23D
18D
15D
shows resumable fault,
shows it is not resumable fault.
Resumable if lower than 100 degree
Trouble Shooting
