Malfunction display of outdoor unit’s DSP1 and DSP2
5. MALFUNCTION
5
owner's manual
Auxiliary unit error(X=1,2,3,e.g,1Hd stands for auxiliary unit1 error)
Low pressure protection
High pressure protection
Inverter compressor top temp. protection
Table.5-1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
19
20
E0
E1
E2
E4
E5
E7
xE9
xH0
H1
H2
H3
xH4
H5
H6
H7
xHd
P0
xP3
P4
E8
17
18
P2
21
22
23
24
25
26
27
28
29
32
x
(
P6
)
P7
P8
PL
P9
xL0
33
34
P5
30
31
No.
Error code Error or protection type
Note
Only display in auxiliary unit
Outdoor unit communication error
20 munites after first power on or indoor
and outdoor communication break off over
2 munites after first power on 20 munites
Phase error
Communication error with indoor unit
Voltage protecation
Outdoor unit address error
Drive type unmatch
H8
H9
35
36
37
38
C7
X represents for a system,
1 is A system, 2 is B system
X represents for a system,
1 is A system, 2 is B system
Communication error between DSP and main chip
Only display in main unit
Only display in main unit
Qty.of outdoor unit increases error
3 times of P6 protection in 60 munites
3 times of P2 protection in 60 munites
3 times of P4 protection in 100 munites
Qty.of indoor units unmatch
Indoor unit lost for over 3 munites; not recoverable,
until the unit qty. recover
P1
Main inverter module temp. protection
DC fan protection
DC compressor module error
X represents for a system, 1 is A system, 2 is B
system
X represents for a system, 1 is A system, 2 is B
system
X represents for a system, 1 is A system, 2 is B
system
X represents for a system, 1 is A system, 2 is B
system
X represents for a system, 1 is A system, 2 is B
system
X represents for a system, 1 is A system, 2 is B
system
X represents for a system, 1 is A system, 2 is B
system
xL1
DC bus low pressure protection
xL2
DC bus high pressure protection
xL3
Reserve
MCE error/synchronization/closed loop
xL4
Zero speed protection
xL5
xL6
xL7
xL8
xL9
Reserve
Phase error protection
Protection of the speed change between a
moment before and after is
＞15Hz
Protection of the speed change between
the setting speed and the actual speed
＞15Hz
39
40
41
X represents for a system, 1 is A system, 2 is B
system
X represents for a system, 1 is A system, 2 is B
system
X represents for a system, 1 is A system, 2 is B
system
Communication error between 0537 and main chip
Qty.of outdoor unit decreases error
After 3 times P9 protection in 60 munites will
report H9
Must restart electricity,otherwise cannot recover
Must restart electricity,otherwise cannot recover
Must restart electricity,otherwise cannot recover
Must restart electricity,otherwise cannot recover
Must restart electricity,otherwise cannot recover
Outdoor temp. sensor error
High pressure sensor error
Air discharging pressure Pc≤0.3MPa
3 times of P9 protection in 60 minutes
3 times of PL protection in 100 minutes
X represents for a
auxiliary
unit
Compressor current protection
X represents for a system, 1 is A system, 2 is
B system
Discharge temp. protection
Discharge sensor error
High condenser temp. protection
Inverter module protection
Main inverter current protection
Auxiliary inverter current protection
X represents for a system, 1 is A system, 2 is B system. After 3
times
(
P6
)
protection in 60 munites will report H4.If appearing
protection and cannot recover in 10 munites,it will report xP6.
After running 10 munites,it appear discharge temp.＜15℃
and pressure＞3.5MPa.The appearance sustains 2munites.
Must restart electricity,otherwise cannot recover.
After 3 times P2 protection in 60 munites will
report H5
After 3 times P6 protection in 100 munites will
report H6
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