Johnson Controls YJHJXH024BARR-FX, Service Manual

Page: 72 / 123

Service Diagnosis
Domestic Air Conditioner
69
7.3.5 Thermistor or Related Abnormality(outdoor unit)
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LED1 flash 10 times:
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: LED1 flash 13 times:
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: LED1 flash 12 times:
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This type of error is detected by checking the thermistor input voltage to the microcomputer.
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(A thermistor error is detected by checking the temperature)
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The thermistor input is above 4.9V or below 0.1V with the power on.
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The values may vary slightly in some models
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Ƶ Faulty connector connection
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Faulty thermistor
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Faulty PCB
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Be sure to turn off power switch before connect or disconnect connector, or
else parts damage may be occurred.
NO
YES
NO
YES
Is it normal?
Check the connector connection.
Thermistor resistance check
Correct the connection
Is it normal?
Replace the thermistor
Replace the outdoor unit PCB
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