19
Trouble Shooting
Error display ( For *EAA series )
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
discharging 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
Temperature protection malfunction
EEPROM abnormal
Compressor overheat
Abnormal mode
Outdoor coil B(suction temp sensor-for MRV II)
Outdoor discharging B(oil temp sensor-for MRV 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 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
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
Resumable if
lower than
100 degree