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Resumable if
lower than 100
degree
Error display ( For ERA series )
Trouble Shooting
For remote
type, flash
times
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Failure description
Indoor ambient temp. sensor failure
Indoor coil temp. sensor failure
Outdoor ambient temp. sensor failure
Outdoor coil temp. sensor failure (compressor
discharging temp. sensor)
Over-current protection
High pressure abnormal
Power supply 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
Temperature protection malfunction
Discharging temp. sensor abnormal
EEPROM abnormal
Pressure abnormal(low pressure)
Compressor overheat
Abnormal mode
Outdoor coil B(suction temp sensor-for MRV II)
Outdoor discharging B(oil temp sensor-for MRV II)
SPDU module temperature protection
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
High pressure switch acts 3 times in 30m
Fault phase, short of phase, out of balance greatly
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
Sensor broken down or short circuit for more than 2m continuously
EEPROM data missing
Low pressure switch acts in normal running
The discharging temperature is higher than 120degree
Indoor operation mode is different 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
Spdu module temperature is too high
Remarks
shows resumable fault, * shows it is not resumable fault.
Failure code
on wired
controller
01(01H)
02(02H)
74(4AH)
73(49H)
72(48H)
83(53H)
71(47H)
07(07H)
06(06H)
08(08H)
11(0BH)
03(03H)
13(0DH)
76(4CH)
05(05H)
84(54H)
80(50H)
12(0CH)
75(4BH)
77(4DH)
20(32D)
For central
control,
failure code
01D
02D
11D
12D
10D
14D
2D
06D
06D
21D
30D
20D
31D
15D
17D
26D
15D
23D
18D
15D
07D