Haier HSU-09H03/R(DB) [74/131] Fault display outdoor unit

Haier HSU-09H03/R(DB) [74/131] Fault display outdoor unit
7.3. Fault Display outdoor unit
If outdoor unit faults, the alarm indicator lamp˄LED1 on the outdoor mainboard ˅will blink and blink
frequency is 1HZˈTime interval between blink cycles is 3s.
Alarm indicator lamp is off when there is no fault.
Fault Description Outdoor led blink times
Outdoor EEPROM Fault 1
U phase over current 3
V phase over current 16
W phase over current 17
Power Supply Over voltage 6
Power Supply Under voltage 20
Compressor startup fault 7
Compressor lack phase 19
PFC fault 24
Compressor over current 14
PFCcircuit or voltage
29
7.3.1 Outdoor troubleshooting
Fault Description Possible Reasons Details of Measure
1 Outdoor EEPROM Fault Faulty outdoor unit PCB Chang the outdoor unit PCB
2 U phase over current 1) the IPM module is broken 1)change the new module
3 V phase over current The same to U phase over current The same to U phase over
current
4 W phase over current The same to U phase over current The same to U phase over
current
5 Power Supply Over voltagve 1)the power supply is too high
2) the IPM module is broken
1)check the power
2)change the new module
6 Power Supply Under voltage 1)the power supply is too low
2) the IPM module is broken
1)check the power
2)change the new module
7 Compressor startup fault The IPM module is broken Change the new one
8 Compressor lack phase The IPM module is broken Change the new one
9 PFC fault The IPM module is broken
Change the new module
10 Compressor over current The IPM module is broken
Change the new module
11 PFCcircuit or voltage fault The IPM module is broken
Change the new module
Detailed Troubleshooting for 5
ǃ˒
Power Supply Over or under voltagve fault
0HWKRGRI
An abnormal voltage rise or fall is detected by checking the specified voltage detection circuit.
0DOIXQFWLRQ
'HWHFWLRQ
0DOIXQFWLRQ
An voltage signal is fed from the voltage detection circuit to the microcomputer
'HFLVLRQ
&RQGLWLRQV
Demastic Air Conditioners
+6809,12H03/R(DB)
System Diagnosis
71

Содержание