Check point 4. Check serial signal (reverse transfer signal)
Check serial signal (Forward transfer signal)
RED
WHITE
BLACK
BLACK
WHITE
GREEN
+
-
N
L
3
2
1
•
Check if indicated value swings between AC 30 V and AC 130 V at outdoor unit terminal 2—3.
•
If it is abnormal, replace main PCB.
•
If it is abnormal, check indoor unit fan motor. (Indoor unit fan motor in
•
If indoor unit fan motor is abnormal, replace indoor unit fan motor and main PCB.
↓
End
Check point 1-2. Check external cause such as noise
•
Check the complete insulation of the grounding.
•
Check if there is any equipment that causes harmonic wave near the power cable (Neon light
bulb or any electronic equipment which causes harmonic wave).
↓
End
2-2. E: 11. Serial communication error (Serial forward transfer error) (Indoor unit)
- (03-13) -
2. Troubleshooting with error code
TROUBLESHOOTING
TROUBLESHOOTING
Содержание AOUG09LZAS1
Страница 4: ......
Страница 5: ...1 GENERAL INFORMATION 2022 10 12 SR_CH01_AS024EF_03 ...
Страница 13: ...2 TECHNICAL DATA AND PARTS LIST 2022 10 12 SR_CH02_AS024EF_05 ...
Страница 33: ...3 TROUBLESHOOTING 2022 10 12 SR_CH03_AS024EF_07 ...
Страница 36: ......
Страница 117: ...4 CONTROL AND FUNCTIONS 2022 10 12 SR_CH04_AS024EF_03 ...
Страница 151: ...5 FILED WORKING 2022 10 12 SR_CH05_AS024EF_04 ...