Connector Wiring Diagram
Domestic Air Conditioner
35
Indoor Malfunction
E2
--
Heat-exchange sensor failure
Page34
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4
E
E14
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Indoor fan motor malfunction
Page35
Outdoor
Malfunction
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F
F1
2
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F22
3
Overcurrent protection of AC electricity
for the outdoor model
Page36
F3 4
Communication fault between the IPM and
outdoor PCB
Page39
F19
6
Power voltage is too high or low
Page40
F4 8
Overheat protection for Discharge
temperature
Page41
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8
F
F21 10
Defrost
temperature sensor failure
Page34
F7 11
Suction
temperature sensor failure
Page34
F6 12
Ambient
temperature sensor failure
Page34
F25 13
Discharge
temperature sensor failure
Page34
F11
18
deviate from the normal for the compressor
Page43
F28
19
Loop of the station detect error
Page43
F2
24
Overcurrent of the compressor
Page38
F23 25
Overcurrent protection for single-phase of the
compressor
Page38
1
0
.3.1 Thermistor or Related Abnormality
Indoor Display E1: Room temperature sensor failure
E2: Heat-exchange sensor failure
outdoor display LED1 flash 10 times
˖
Defrost temperature sensor failure
LED1 flash 11 times
˖
Suction temperature sensor failure
LED1 flash 12 times
˖
Ambient temperature sensor failure
LED1 flash 13 times
˖
Discharge temperature sensor failure
Method of The temperatures detected by the thermistors are used to determine thermistor errors
Malfunction
Detection
Malfunction when the thermistor input is more than 4.92V or less than 0.08V during compressor
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D
Conditions
Note: The values vary slightly in some models
Supposed
Ŷ
Faulty connector connection
Causes
Ŷ
Faulty thermistor
Ŷ
Faulty PCB
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or else
parts damage may be occurred.
Page36
Summary of Contents for 1U82SA2ERA
Page 11: ... Pinping diagrams Domestic air conditioner 4ˊPinping diagrams 11 ...
Page 12: ...Operation range Domestic air conditioner 5 Operation range 12 10 0 20 16 32 10 20 15 ...
Page 54: ...Circuit diagrams 63 Domestic air conditioner ...
Page 55: ...Circuit diagrams Domestic air conditioner 12 2 Module board Circuit Diagram 64 ...
