AS24GS1/2ERA 1U24GS1ERA-SM Service Diagnosis
Domestic Air Conditioner
64
7.3.1Thermistor or Related Abnormality (indoor unit)
W)B((-/=C.L4EJ/
S#: Room temperature sensor failure
S%: Heat-exchange sensor failure
8*,A(B/(K
/ / / / / / / /
the temperatures detected by the thermistors are used to determine
t
hermistor errors
/
8E4KG)+,C()/
/ / / / /
=*,*+,C()
/
8E4KG)+,C()/
/ / / / /
when the thermistor input is more than 4.92V or less than 0.08V during compressor
/
=*+C.C()//
/ / / / / / /
operation.
"()BC,C().
/
/ / / / / / / / / / / / / / / / X/>(,*?/
The values vary slightly in some models
/
&GLL(.*B/
/ / / / / / /
Ƶ
/ /
Faulty connector connection
"EG.*./
/ / / / / / / / / /
Ƶ
/ /
Faulty thermistor
Ƶ
Faulty PCB
P-(GM4*.A((,C)D/// /
X/"EG,C()/ /
Be sure to turn off power switch before connect or disconnect connector, or
else parts damage may be occurred.
PA*-FC.,(-/-*.C.,E)+*/+A*+V/F*,A(B?/
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
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