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slim cassette with auto-lifting panel)
Auto-lifting panel is faulty (For slim cassette with auto-lifting panel)
Auto-lifting panel is not closed (For slim cassette with auto-lifting panel)
IPM module malfunction
Over voltage or over low voltage protection
Too low ambient temperature protection
Error rotor position protection of compressor
Mode conflict
Low pressure protection of compressor
18.2 Outdoor unit error code explanation:
Display
E0
Outdoor EEPROM malfunction
E2
Indoor / outdoor units communication error
E3
Communication malfunction between IPM board and outdoor main board
E4
Open or short circuit of outdoor unit temperature sensor
E5
Voltage protection
E8
Outdoor fan speed has been out of control
F1
No A Indoor unit coil outlet temperature sensor or connector of sensor is defective
F2
No B Indoor unit coil outlet temperature sensor or connector of sensor is defective
F3
No C Indoor unit coil outlet temperature sensor or connector of sensor is defective
F4
No D Indoor unit coil outlet temperature sensor or connector of sensor is defective
F5
No E Indoor unit coil outlet temperature sensor or connector of sensor is defective
High pressure protection (ForM4OE-28HFN1-Q, 38QUS036DS4*, 38QUS042DS5*)
P1
P2
Low pressure protection (ForM4OE-28HFN1-Q, 38QUS036DS4*, 38QUS042DS5*)
P3
Current protection of compressor
P4
Temperature protection of compressor discharge
P5
High temperature protection of condenser
P6
IPM module protection
LP
Low ambient temperature protection
X(off) ☆(flash at 2Hz)
O (on)
LED STATUS
65
F8
O
F9
O
☆
P0
☆
P1
☆
P3
☆
P4
☆
P5
☆
P6
9
10
1
2
4
5
6
7
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