2-40. E: A1. Discharge temperature error (Outdoor unit)
Indicator
Indoor unit
Operation indicator
10 time flash
Timer indicator
1 time flash
Economy indicator
Continuous flash
Error code
E: A1
Detective actuator
Outdoor unit main PCB
Protection stop by discharge temperature ≥ 110°C
during compressor operation generated 2 times within
24 hours.
Discharge temperature thermistor
Forecast of cause
3-way valve not opened
EEV or capillary tube defective, strainer clogged
Outdoor unit operation failure, foreign matter on heat
exchanger
Discharge temperature thermistor failure
Insufficient refrigerant
Main PCB failure
Check point 1. Check if 3-way valve is open
If the 3-way valve is closed, open the 3-way valve and check operation.
NOTE:
For cooling operation, check gas side of the 3-way valve.
For heating operation, check liquid side of the 3-way valve.
↓
Check point 2. Check any of the electronic expansion valve (EEV), capillary tube, or strainer, or all
•
Check if EEV open or there is a capillary tube defect.
Refer to outdoor unit Electrronic Expansion Valve (EEV) or Capillary tube in
•
Check the strainer clogging.
↓
Check point 3. Check the outdoor unit fan and heat exchanger
•
Check for foreign object at heat exchanger
•
Check if fan can be rotated by hand.
•
Check the motor. (Refer to outdoor unit fan motor in
↓
Check point 4. Check the discharge thermistor
The discharge temperature thermistor characteristics check. (Check by disconnecting thermistor
from PCB.)
NOTE:
For the characteristics of the thermistor, refer to
"Thermistor resistance values"
↓
2-40. E: A1. Discharge temperature error (Outdoor unit)
- (03-58) -
2. Troubleshooting with error code
TROUBLESHOOTING
TROUBLESHOOTING
Содержание ABHG18KRTA
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Страница 5: ...1 GENERAL INFORMATION 2022 08 08 SR_CH01_MU004EG_06 ...
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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 ...
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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 ...
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Страница 403: ...5 FILED WORKING 2022 08 08 SR_CH05_MU004EG_08 ...