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Check point 4. Check serial signal (Reverse transfer signal)
Check serial signal (Reverse transfer signal)
RED
WHITE
BLACK
+
-
3
2
1
•
Check if indicated value swings between AC 90 V and AC 270 V at the outdoor unit terminal 1
—3.
•
If it is abnormal, check the parts below.
–
Outdoor unit fan motor in
–
•
If outdoor fan motor is abnormal, replace outdoor unit fan motor and main PCB.
•
If active filter module is abnormal, replace it.
•
If the checked parts are normal, replace the 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
2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit)
- (03-15) -
2. Troubleshooting with error code
TROUBLESHOOTING
TROUBLESHOOTING
Содержание ABHG18KRTA
Страница 4: ......
Страница 5: ...1 GENERAL INFORMATION 2022 08 08 SR_CH01_MU004EG_06 ...
Страница 59: ...2 TECHNICAL DATA AND PARTS LIST 2022 08 08 SR_CH02_MU004EG_11 ...
Страница 62: ......
Страница 212: ...9 17 Model AOHG36KBTA5 02 150 9 PC board diagrams TECHNICAL DATA AND PARTS LIST TECHNICAL DATA AND PARTS LIST ...
Страница 213: ...3 TROUBLESHOOTING 2022 08 08 SR_CH03_MU004EG_07 ...
Страница 216: ......
Страница 316: ...6 2 Outdoor unit 03 100 6 Thermistor resistance values TROUBLESHOOTING TROUBLESHOOTING ...
Страница 317: ...4 CONTROL AND FUNCTIONS 2022 04 13 SR_CH04_MU004EG_08 ...
Страница 320: ......
Страница 403: ...5 FILED WORKING 2022 08 08 SR_CH05_MU004EG_08 ...