4-3-2 Indoor Heat Exchanger Temperature Sensor Error
When
is diplayed
1. Checklist :
1) Is the indoor units temperature sensor connected correctly?
. Troubleshooting procedure
Yes
No
No
Poor ASS’Y PCB Replace
Yes
Poor ASS’Y PCB Replace
Yes
ASS’Y Sensor Replace
SENSOR Resistance Value : 0°C-1.09kΩ
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 5°C?
Detach the assembly sensor from the
ASS’Y PCB CN43 connector and measure
the sensor resistance of #3 and #4 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
#3 and #4 of the CN43 connector.
4-6
Samsung Electronics
