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Idiomas disponibles
Outdoor Unit
Flash time
alarm
1
2
Overcurrent protection of AC
3
electricity for the outdoor PCB
Communication error between
4
outdoor board and model pcb.
Compressor discarging temperature
8
9
Abnormal of DC motor
10
Abnormal of piping sensor
11
Suction temperature sensor failure
12
Abnormal of outdoor ambient sensor
Abnormal of compressor discharge
13
Commmunication error between
15
indoor and outdoor unit
16
Lack of refrigerant
4-way valve reverse failure（only for
17
18
Compressor jam (only for spdu)
19
Module PWM select circuit error
25
Compressor U-phase overcurrent
25
Compressor V-phase overcurrent
25
Compressor W-phase overcurrent
Description
Eeprom failure
IPM failure
protection
sensor
Tm <= 15 last for 1 min. after compressor has started since 10 min. in heating
18K）
Analyse and diagnose
Outdoor main board eeprom fail
IPM failure
The current of L and N is too high.
Communication fail over 4 min.
Compressor dischrging temperature over stopped temperature
Jam of DC motor or motor failure
Piping sensor short circuit or open circuit
Wiring of the compressor is wrong or poor connections
Outdoor ambien sensor short-circuit or open circuit
Compressor discharge sensor shirt circuit or open circuit
Communication fail over 4 min.
Check leakage in the unit
Alarm and stop if detect:
mode; failure confirmation if 3 times an hour
Inner compressor is abnormal jamed
Module PWM select wrong circuit
U-phase compressor current too hight
V-phase compressor current too hight
W-phase compressor current too hight
14
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