49
11
C6
DSP and communication board communication malfunction
Blinking
On
Off
12
C7
Outdoor unit and drive board communication malfunction
Blinking
On
Off
13
C8
Compressor over-current alarm
-
-
-
14
C9
Compressor weak magnetic protection alarm
Off
On
Blinking
15
CA
Radiator overheating alarm
-
-
16
CC
AC input over-current alarm
-
-
-
17
CD
EEPROM of drive board malfunction alarm
Off
On
Blinking
18
CE
Compressor1 over-current alarm
Off
On
Blinking
19
CF
Compressor2 over-current alarm
Off
On
Blinking
20
E0
System malfunction
Off
Off
Blinking
21
E1
Exhaust temperature sensor malfunction of Compressor1 (TH2)
Off
Blinking
Blinking
22
E2
Ultra-low superheat degree protection
Off
Blinking
Blinking
23
E3
4WV/CHECK VAVLE/EXV malfunction
Blinking
Blinking
Off
24
E4
Exhaust temperature sensor malfunction of Compressor2 (TH3)
Blinking
Blinking
Off
25
E5
Communication malfunction of household billing system and
outdoor units
Blinking
Blinking
Off
26
E6
The indoor capacity exceeds outdoor’s maximum allowable range
Off
Off
Blinking
27
E7
All indoor units and outdoor units communication malfunction
On
Blinking
On
28
E8
IPM over-current stop
On
Blinking
Off
29
E9
Compressor drive failure
On
Off
Blinking
30
EA
Compressor over-current
On
Off
Blinking
31
EB
Open phase of compressor drive input voltage
Off
Blinking
On
32
EC
IPM current sampling malfunction
On
Blinking
Off
33
ED
Radiator or PIM overheating stop
Off
On
Blinking
34
EE
Driver’s PIM precharge failure
Off
On
Blinking
35
EF
DC busbar over-voltage
Off
Blinking
On
36
F0
Master communicate fail with No.0 Slave Unit
On
Blinking
On
37
F1
Master communicate fail with No.1 Slave Unit
On
Blinking
On
38
F2
Master communicate fail with No.2 Slave Unit
On
Blinking
On
39
F4
Wrong dial setting
Off
Blinking
Blinking
40
F5
Compressor1 discharge temperature exceeds allowed range
Off
Blinking
Blinking
