Samsung SH07AWH, Service Manual

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Samsung Electronics 20
6-3 Breakdown diagnosis by symptoms
6-3-1 Room temperature sensor failure
No
ASS'Y Sensor Replace
SENSOR Resistance Value : 20˚C-12.09k
Ω
SENSOR Resistance Value : 30˚C-8.31k
Ω
SENSOR Resistance Value : 35˚C-6.94k
Ω
SENSOR Resistance Value : 40˚C-5.83k
Ω
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
10K
Ω
±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 TURBO TIMER
: Lamp flickering : Lamp off
DB98-21337A(1) 05/1/4 2:21 AM Page 20