Samsung RF32FMQDBSR/AA, RF32FMQDBSR/AA, Service Manual, Page: 96 / 127

96
TROUBLESHOOTING
1. Water will be automatically supplied to the Ice Maker depending on temprature & time conditions, and Ice will be
produced to dispense.
2. Power is applied to one end of the wires. So, Make sure to refer to its Exploded View whenever doing the disassembly
3. The operation of the Ice Maker shall be done after pressing the Ice Maker Test Button.
It is not possible to check when the power is off.
4. Since both of the PCB and the Ice Maker are located at the front and the top each other, make sure to have two
people check them.
5. It may cause burn when the Ice Maker Heater heats up. So please take an extra caution.
6. The Ice Maker has a counter-clockwise rotation function. So, Its counter-clockwise rotation is normal.
1) Check and replace Water Valve
* Refer to Water Valve operating
conditions
2) Replace MAIN PCB
1) Check and replace Water Valve
*
Refer when Ice Maker Sensor is
defective
No
No
Yes
Yes
Is water supplied within 6
minutes (after Ice Full and
Parallel Detection)?
ICE Maker Sensor itself is in
good condition?
Start
1) Check and Replace ICE MAKER KIT
2)
Check Main PCB Input Signal /
Replace the Main PCB
(CN90 #5 - "0V")
1) Check after connecting the Wire
Harness
2) Check and Replace ICE MAKER KIT
3) Replace MAIN PCB
PCB and other parts are normal,
Check again the Connector contact
No
No
Yes
Yes
Operation Status (CN90 #5)
Test Switch
Stand-by On
5V 0V
Micom (IC01) Operation Status
Stand-
by
Rotation
Before
completing
Home
CN90 #7
(Blade Ice
Scoop)
0V 4.9V 4.9V 0V
CN90
#4(Guide
Ice Full)
0V 0V 4.9V 0V
Operation condition upop Motor rotation,
Operation Status of Micom(IC01)& (Expander) IC71
Stand-by
On
Motor Load (#80, #81) of
MICOM(IC01)
0V 5V
Heater Load (#6) of
Expander(IC71)
0V 5V
Heater operates differently according to its conditions.
During the Test Mode, it will be on 30 seconds.
When pressing the
Ice Maker Test Switch (over 1.5
sec), does it rotate?
Input voltage
of IC01 #54(CN90 #4) and IC01
#24(CN90 #7) are normal?
4-2-8. When the ICE MAKER does not operate