Samsung AS12HPBX - Room Temperature Sensor Failure

Samsung Electronics32
Troubleshooting
6-2-2 Room temperature sensor failure
No
ASS'Y Sensor Replace
SENSOR Resistance Value : 20˚C-12.09kΩ
SENSOR Resistance Value : 30˚C-8.31kΩ
SENSOR Resistance Value : 35˚C-6.94kΩ
SENSOR Resistance Value : 40˚C-5.83kΩ
Ye s
No
No
Detach the assembly sensor from the
ASS'Y PCB CN43 connector and measure
the sensor resistance with an ohmmeter (tester).
Connect the sensor to CN43,
supply power, and measure the voltage of
#1 and #2 of the CN43 connector.
MICOM Error or Connector(CN43) check
Is the sensor resistance value
10KΩ ±3% at the room temperature
of 25˚C?
Ye s
Poor ASS'Y PCB Replace
Below 0.5V?
Ye s
Poor ASS'Y PCB Replace
Over 4.9V?
Error Mode
LAMP 7-segment Display
Indoor unit room temperature sensor error(open or short)
DB98_20429A(1)_1 12/24/04 10:55 AM Page 32