11.4.1 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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Conditions
Note: The values vary slightly in some models
Supposed
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Faulty connector connection
Causes
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Faulty thermistor
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Faulty PCB
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or
else parts damage may be occurred.
Thermistor resistance check method:
Remove the connector of the thermistor on the PCB, and measure the resistance of thermistor using tester.The
relationship between normal temperature and resistance is shown in the value of indoor thermistor.
Thermistor resistance check
Is it normal?
Yes
NO
Yes
Is it normal?
NO
Check the connector connection.
Replace the thermistor
Replace the indoor unit PCB
Correct the connection
Service diagnosis
Domestic air conditioner
50
Содержание Z/N-Series
Страница 11: ... Pinping diagrams Domestic air conditioner 4ˊPinping diagrams 9 ...
Страница 12: ... Operation range Domestic air conditioner 5ˊOperation range 10 ...
Страница 15: ...CN9 CN10 CN36 CN3 CN23 CN24 CN25 CN28 PCB 1 Wiring diagram Domestic air conditioner 13 ...
Страница 16: ...PCB 2 CN1 CN5 CN6 CN7 CN10 CN11 CN8 CN9 CN4 CN3 CN2 Wiring diagram Domestic air conditioner 14 ...
Страница 17: ...Wiring diagram Domestic air conditioner 15 ...
Страница 33: ...Dimensinal drawings Domestic air conditioner 8 Dimensional drawings 9 Center of gravity Outdoor unit 31 ...
Страница 36: ...WARNING CAUTION Installations Domestic air conditioner 34 ...
Страница 37: ...Installations Domestic air conditioner 35 ...
Страница 38: ...Installations Domestic air conditioner 36 ...
Страница 39: ...Installations Domestic air conditioner 37 ...
Страница 40: ...Installations Domestic air conditioner 38 ...
Страница 41: ...Installations Domestic air conditioner 39 ...
Страница 42: ...Installations Domestic air conditioner 40 ...
Страница 45: ...Pressurize for over 3 minutes at 4 2MPa After above Installations Domestic air conditioner 43 ...