80 | SAMSUNG
8
Troubleshooting for Non Inverter (cont.)
■ Room temperature sensor failure
TROUBLESHOOTING
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
Yes
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?
Yes
Poor ASS'Y PCB Replace
Below 0.5V?
Yes
Poor ASS'Y PCB Replace
Over 4.9V?
Indoor unit room temperature sensor error(open or short)
Description
LAMP
OPERATION TIMER TURBO
7-segment
Display
: Lamp flickering
: Lamp off
DB98_16444A(1)_2 2/9/04 10:05 AM Page 80
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