9
Technical Information
3
.
MAINTENANCE
3
.1 ERROR CODE LIST
Name of malfunction
Display of
indoor unit
Display of lamp
(the time of blinking)
Indoor
Outdoor
R
C
H
Y
R
G
Anti-freezing protection
E2
2
3
Block or Low pressure of refrigerant system
E3
3
9
Compressor exhaust high temperature protection
E4
4
7
AC over-current protection
E5
5
5
Communication failure between indoor unit and outdoor unit
E6
6
O/U
Anti-high temperature protection
E8
8
6
No feedback of indoor fan motor
H4
4
6
Jumper cap malfunction protection
H6
11
Indoor unit and outdoor unit doesn’t match
C5
15
16
Outdoor DC fan motor malfunction
LP
19
14
Power protection
L3
23
9
Gathering refrigerant
L9
20
Indoor ambient sensor open or short circuit
Fo
1
1
Indoor tube sensor open or short circuit
F1
1
Outdoor ambient sensor open or short circuit
F2
2
Outdoor tube sensor open or short circuit
F3
3
6
Exhaust sensor open or short circuit
F4
4
5
Overload limit / drop frequency
F5
5
7
Over current limit / drop frequency
F6
6
3
High exhaust temperature limit / drop frequency
F8
8
1
Refrigerant leakage protection
F9
9
2
Anti-freezing limit / drop frequency
F0
10
9
Defrosting
FH
2
2
4
Compressor overload protection
H1
1
2
IPM protection
H3
3
8
Module temperature is too high
H5
5
4
PFC protection
H5
5
10
Loading EEPROM malfunction
HC
6
14
High PN voltage protection
EE
15
11
Low PN voltage protection
PH
11
13
4-way valve reversal abnormal
PL
21
12
DRED1 / DRED2 / DRED3
U7
20
Compressor Min frequence in test state
D1/D2/D3
Compressor rated frequence in test state
P0
Compressor maximum frequence in test state
P1
Compressor intermediate frequence in test state
P3
Compressor is running(normal)
1
The temperature for turning on the unit is reached(normal)
8
Frequency limiting (module temperature )
EU
6
6
11
Frequency limiting (power)
LU
24
13
Malfunction of detecting plate(WIFI)
JF
Notes: R(Indoor)--Running C--Cooling H--Heating Y--Yellow R(Outdoor)--Red G--Green
O/U--OFF or Unblink The display difference between Fo and F0 is ‘o’ is the bottom part of figure 8
