Samsung RH29H9000SR, Руководство по обслуживанию

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65
TROUBLESHOOTING
4-2-2. Unable to Defrost
CN70
CN30
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F-DEF-HEATER : Read resistance between MAIN PBA
CN70 #9 and SMPS PBA CN01 #3
F-DEF-SENSOR : Read resistance between CN30 #3
and #7
Press the Power Freeze and the Fridge buttons at the
same time for 8 sec and then go into the 2nd Test
Mode.
Defrost Sensor Voltage is lower than 3.1V
Start
Forced F Defrost
Check all the sensors
Normal
Check Thermistor, Heater and
their contacts.
Replace the sensor
NO
Repair the connectors
• Sensor Check Point (CN30)
2PIN-1PIN : EXT-SENSOR
2PIN-3PIN : F-SENSOR
2PIN-4PIN : F-DEF-SENSOR
2PIN-5PIN : R-SENSOR
2PIN-6PIN : R-DEF-SENSOR
2PIN-9PIN : CV-SENSOR
2PIN-10PIN : CV-DEF-SENSOR
2PIN-11PIN : HUM1-SENSOR
2PIN-12PIN : HUM2-SENSOR
2PIN-13PIN : ICEROOM-SENSOR
2PIN-14PIN : PANTRY-SENSOR
NO
YES
YES
F-DEF Sensor is
normal (with Self Diagnosis)
Check Thermistor, Heater and their
connectors
NO
YES
F-DEF Heater is normal
Forced Operation for a certain time
NO
YES
NO
NO
Defrost Sensor Temp is
lower than -5°C
Power is supplied to
Defrost Heater
Repair or Replace defective
relays, or PBA Ass'y
MAIN PBA connectors
are normal
YES
YES
It goes back to
Cooling Operation after
heating
When F-DEF Sensor is higher than
+10
℃
and +17
℃
, it will stop heating
and go back to Cooling Operation.
Note