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12-2- Indoor Eva-in temperature sensor error
n I
o d
r o
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s i
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y a
1.Checklist :
1) Is the indoor units temperature sensor connected correctly?
2) Is the sensor placed correctly?
3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature?
2. Troubleshooting procedure
Detach the assembled sensor from the PBA sensor
connector and measure the sensor resistance with
ohmmeter(tester)
Is the sensor resistance value #3-#4
10kohm±3%
temperature
of 25
he sensor to PBA connector (4piin)
supply power and measure the voltage of #3-#4 in
the connector
Below 0.5V or Over 4.5V?
Micom error or connector check
Exchange the indoor PBA
1.remove the temprature sensor
and check the resistace
sensor resistance value as follow:
Samsung Electronics
Indoor
Eva-in
1 E
2 2
error
he room
YES
NO
YES
YES
temp
sensor
Sensor Replace
NO
Sensor resistance
YES
Exchange the
2.set power on,and check the voltage
of the CN43(PIN3,PIN4)
the voltage is between 0.5V and 4.5V.
value : 20
- 12.09kohm
30
- 8.31kohm
35
- 6.94kohm
40
- 5.83kohm
indoor PBA
12-2-3
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- Error Mode
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