Unitary Ducted Split AC
10
Fig.19
4.7 Lock Function
This function can be activated by simultaneously pressing the “▼/▲” button for five seconds on
the main page, and be canceled by another press.
4.8 Error Display
For instance, if the display board ambient temperature sensor error occurs, the error
code“F0”and related error symbol will be displayed.
Table 5 Error List
SN
Error Code
Error Description
1
F0
Indoor Ambient Temperature Sensor Error
2
E1
Compressor High Pressure Protection
3
E3
Compressor Low Pressure Protection
4
E4
Compressor Discharge Temperature Protection
5
E5
Compressor Overload Protection
6
E8
Over High Tube Temperature Protection of the Outdoor Unit
7
F2
Outdoor Unit Tube Temperature Sensor Error
8
F4
Discharge Temperature Sensor Error
9
e5
Main Board Discharge Temperature Sensor Error
10
F3
Main Board Ambient Temperature Sensor Error
11
E6
Communication between the Main Board and the Display Board
12
EE
Main Board Memory Chip Error
13
c5
Jumper Error
14
PL
DC Bus Under-voltage Protection
15
PH
DC Bus Over-voltage Protection
16
PA
AC Current Protection (Input Side)
17
H5
IPM Error
18
Hc
PFC Error
19
Lc
Startup Failure
20
P0
Drive Module Reset Failure
21
P5
Compressor Over-current
22
Pc
Sensing Circuit Error or Current Sensor Error
23
H7
Compressor Motor Desynchronization
24
P6
Communication Error between the Main Board and the Drive
25
P8
IPM or PFC Over-temperature Protection
26
P7
IPM or PFC Temperature Sensor Error
