When The Ice Maker Does Not Operate - Samsung RF32FMQDBSR/AA Service Manual

TROUBLESHOOTING

4-2-8. When the ICE MAKER does not operate

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.
Operation Status (CN90 #5)
Stand-by
Test Switch
5V
Micom (IC01) Operation Status
Stand-
Rotation
by
CN90 #7
(Blade Ice 0V 4.9V
Scoop)
CN90
#4(Guide 0V 0V
Ice Full)
Operation condition upop Motor rotation,
Operation Status of Micom(IC01)& (Expander) IC71
Motor Load (#80, #81) of
MICOM(IC01)
Heater Load (#6) of
Expander(IC71)
Heater operates differently according to its conditions.
During the Test Mode, it will be on 30 seconds.
On
0V
Before
Home
completing
4.9V 0V
4.9V 0V
Stand-by On
0V 5V
0V 5V
Start
When pressing the
Ice Maker Test Switch (over 1.5
sec), does it rotate?
Yes
Input voltage
of IC01 #54(CN90 #4) and IC01
#24(CN90 #7) are normal?
Yes
Is water supplied within 6
minutes (after Ice Full and
Parallel Detection)?
Yes
ICE Maker Sensor itself is in
good condition?
Yes
PCB and other parts are normal,
Check again the Connector contact
96
No
1) Check and Replace ICE MAKER KIT
2) Check Main PCB Input Signal /
Replace the Main PCB
(CN90 #5 - "0V")
No
1) Check after connecting the Wire
Harness
2) Check and Replace ICE MAKER KIT
3) Replace MAIN PCB
No
1) Check and replace Water Valve
* Refer to Water Valve operating
conditions
2) Replace MAIN PCB
No
1) Check and replace Water Valve
* Refer when Ice Maker Sensor is
defective