DM16-01.01.11-01en
Service
manual
Multi DC inverter R410A. Outdoor unit
35
Over voltage or over low voltage protection
P1
☆
2
Too low ambient temperature protection
P3
☆
4
Error rotor position protection of compressor
P4
☆
5
Mode conflict
P5
☆
6
Low pressure protection of compressor
P6
☆
7
O (on) X(off)
☆
(flash at 2Hz)
11.2
Outdoor unit error code explanation:
Display LED
STATUS
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
P1
High pressure protection (ForM4OE-28HFN1-Q, M4OB-36HFN1-Q, M5OE-42HFN1-Q)
P2
Low pressure protection (ForM4OE-28HFN1-Q, M4OB-36HFN1-Q, M5OE-42HFN1-Q)
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
Note: Once these error codes display, they will disappear in at least 30 seconds if the unit come back to
normal. (Except E2&E3)
