Samsung AQV12A*A Series - Indoor Temperature Sensor ErrorWhen Is Diplayed

Samsung Electronics 4-7
4-3-2 Indoor Temperature Sensor ErrorWhen is diplayed
1. Checklist :
1) Is the indoor units temperature sensor connected correctly?
2. Troubleshooting procedure
Yes
No
No
Poor ASS’Y PCB Replace
Yes
Poor ASS’Y PCB Replace
Yes
ASS’Y Sensor Replace
SENSOR Resistance Value : 20°C-12.09kΩ
30°C-8.31kΩ
35°C-6.94kΩ
40°C-5.83kΩ
No
Is the sensor resistance value
10KΩ ±3% at the room temperature
of 25°C?
Detach the assembly sensor from the
ASS’Y PCB CN43 connector and measure
the sensor resistance with an ohmmeter (tester).
Below 0.5V?
Over 4.9V?
MICOM Error or Connector(CN43) check
Connect the sensor to CN43,
supply power, and measure the voltage of
#1 and #2 of the CN43 connector.