Samsung AR18NSWXCWKNCV, Service Manual

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10-4 Sa m sung Electronics
10-2-3 Indoor Eva-in te m perature sensor error
Indoor display
3-LED DISPLAY
7-SEG DISPLAY
DESCRIPTION
LED1 LED2 LED3
E122,E123 Indoor MID, Indoor IN PIPE-TH sensor error
◎ ◎
{
O
LED ON
◎
LED BLINKING
{
LED OFF
1. Checklist :
1) Is the indoor units te m perature sensor connected correctl y ?
2) Is the sensor placed correctl y ?
3) Does the both ter m inal of sensor satisf y the resistance value in accordance with te m perature?
2. Troubleshooting procedure
YES
Exchange the indoor PBA
YES
Exchange the indoor PBA
NO
NO
Is the sensor resistance value
#3-#4 and #5-#6 10koh m ±3% at the roo m
te m perature of 25
ఁ
YES
Detach the asse m bled sensor fro m the PBA sensor
connector and m easure the sensor resistance with
oh mm eter(tester)
Is the connection of power cable
and co mm unication cable nor m al?
Sensor Replace
Sensor resistance value : 20°C- 12.09koh
m
30°C - 8.31koh m
35°C - 6.94koh m
40°C- 5.83koh m
Connect the sensor to PBA connector (6piin)
suppl y power and m easure the voltage of #3-#4
and #5-#6 in the connector
Below 0.5V or Over 4.5V?
Mico m error or connector check