92
CHECK THE INSTALLATION STATUS
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Recheck the applicable sensor.
Reference
If defrost sensor temperatures of fresh food
and freezer compartments are higher than
50℉(10℃), 53.6℉(12℃) by the heating from
heater, heating would be finished and will
return to cooling operation after a pause.
No
** Measuring point of resistance value according to sensor **
R-DEF : CN51 - “12"
↔
“13" measuring resistance value
F-DEF : CN51 - “5"
↔
“7" measuring resistance value
** 0Ω : Short trouble /Ω∞ : Open trouble
** Measuring point of resistance value according to heater**
R-DEF : CN70 "5"(WHT)
↔
CN70 "1" (BLK) measuring resistance
value(132 ohm ± 7%)
F-DEF : CN70 "3"(BLU)
↔
CN70 "1" (BLK) measuring resistance
value(63 ohm + 8%)
** 0Ω: Short trouble / ∞Ω: Open(bimetal, heater) trouble
Reference to the manual "Self-Diagnostic".
Resistance value of sensor according to temperature
86℉(30℃)
4.22kΩ
If you need the
temperature with
detail, refer to DATA1.
temperature
table
68℉(20℃)
6.05kΩ
50℉(10℃)
8.87kΩ
32℉(0℃)
13.29kΩ
14℃ (-10℉)
20.42kΩ
-4℉-20℃)
32.23kΩ
-22℉(-30℃)
52.41kΩ
Check the bimetal, heater disconnection,
wiring connection etc.
Refer to self-diagnostic
function in the manual.
Replace the applicable sensor
Repair connection terminal.
Manual operation for a certain time.
Manual defrosting of fresh food and
freezer compartments
operate simultaneously.
Refer to TEST Mode Entering
Normal
Check bimetal, heater itself,
disconnection etc.
Replace failure Relay or
replace PCB ASS'Y.
Does the system
return to cooling operation
after heating for specified
time?
Are the all deforst
heater normal?
Is defrost sensor by
self-diagnostic normal?
Is connection
terminal of MAIN PBA part
normal?
Is the temperature
of defrost sensor lower than
53.6℉(12℃)?
Is power applied to
each defrost heaters?
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Start
6-4) If defrost does not operate (F/R DEF Heater)
• If defrost has trouble, select the self-diagnostic function to detect the error of defrost heater before Power Off.
(Check the function with the self-diagnostic function.)
F DEF ERROR
R DEF ERROR
☞
Checking method of F DEF Heater resistance value
F-DEF : CN70 “3”(BLU)
↔
CN70 ”1” (BLK)
R-DEF : CN70 “5”(WHT)
↔
CN70 ”1” (BLK)
- Recheck if resistance values are different after the test
PIN Number
1) F DEF Heater
2) R DEF Heater
Содержание RF18A Series
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Страница 104: ...104 This document cannot be usedwithout Samsung s authorization 9 BLOCKDIAGRAM 9 1 Whole block diagram ...