GIWEE C4OU-D36HR4-D01 - Indoor Unit Error Troubleshooting

75
2
Running mode (0: shutdown, 1: cooling,
3: heating, 4: forced cooling)
21
T1 room temperature of indoor unit B
3
Indoor unit demanded capacity
22
EXV opening degree of indoor unit B
4
Actual operation ability
23
Indoor unit C demanded capacity
5
Target operation ability
24
T1 room temperature of indoor unit C
6
Fan speed (0~7)
25
EXV opening degree of indoor unit C
7
Average evaporator temperature
26
Indoor unit D demanded capacity
8
T3 condenser temperature
27
T1 room temperature of indoor unit D
9
T4 outdoor ambient temperature
28
EXV opening degree of indoor unit D
10
TP discharge temperature
29
Indoor unit E demanded capacity
11
AC current
30
T1 room temperature of indoor unit E
12
DC current
31
EXV opening degree of indoor unit E
13
AC voltage
32
Average temperature of T2B
14
DC voltage
33
Frequency limit (1: current limit, 2:
cooling limit, 4: T5, 8: T3, 16: T2)
15
The quantity of indoor units
34
The reason of T6 protection
16
The quantity of turned on indoor units
35
Software version
17
Indoor unit A demanded capacity
36
EEPROM version
18
T1 room temperature of indoor unit A
37
Last error or protection code
19
EXV opening degree of indoor unit A
3. Indoor unit errors troubleshooting
Error
code
Description
Reasons and solutions
E1
Communication
error between
ODU & IDU
1. communication wires connect wrongly
2. fire and zero line of IDU and ODU should be one-to-one
corresponding
3. There is interference in the lines or damage to the indoor and outdoor
PCBs.
E2
T1 temp. sensor
fault
1. Check whether the sensor connector is loose, if the plug is loose,
reconnect the plug, otherwise proceed to the next inspection;