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Connector Wiring Diagram
Domestic Air Conditioner
32
1 .3.1
Thermistor or Related Abnormality
1 .3 Error Codes and Description indoor display
Code indication
fault description
Indoor displaying panel code indication
Outdoor
(LED1
flash
times)
Other
display
Only For 498 and 498A display
(Red/Green Time Run □On ★
Flash ■Off ,)
Indoor and
Outdoor
E7 ■ ■ ★ 15
Communication fault between
indoor and outdoor units
Indoor
Malfunction
E1 ★ ■ ■ -- Room temperature sensor failure
E2 ★ □ □ -- Heat-exchange sensor failure
E4 ★ □ ★ -- Indoor EEPROM error
E14 ■ □ ★ -- Indoor fan motor malfunction
Outdoor
Malfunction
F12 ■ ★ ■ 1 Outdoor EEPROM error
F1 □ ★ ★ 2 The protection of IPM
F22 ★ ★ ■ 3
Overcurrent protection of AC
electricity for the outdoor model
F3 ■ ★ ■ 4
Communication fault between the
IPM and outdoor PCB
F20 / 5 Compressor overload
F19 ■ ★ □ 6 Power voltage is too high or low
F27 / 7 Compressor blocked
F4 ■ ★ ■ 8
Overheat protection for Discharge
temperature
F8 / 9 Outdoor DC fan motor fault
F21 □ □ ★ 10 Defrost temperature sensor failure
F7 ■ ★ ■ 11 Suction temperature sensor failure
F6 □ ★ ■ 12 Ambient temperature sensor failure
F25 ★ □ ■ 13
Discharge temperature sensor
failure
F30
14
Suction temp of compressor is too
high
F13 16 Less gas charge
F14 17 4-way-valve fault
F11 ■ ★ ■ 18
deviate from the normal for the
compressor
F28 ■ ★ ■ 19 Loop of the station detect error
F2 ■ ★ □ 24 Overcurrent of the compressor
F23 ■ ★ □ 25
Overcurrent protection for
single-phase of the compressor
outdoor display LED1 flash 10 times Defrost temperature sensor failure
LED1 flash 11 times
Suction temperature sensor failure
LED1 flash 12 times
Ambient temperature sensor failure
LED1 flash 13 times
Discharge temperature sensor failure
Indoor display
E1: Room temperature sensor failure
E2: Indoor pipe sensor failure
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