When Ice Maker(Ff) Does Not Operate - Samsung RF28R7201 AA Series Service Manual

TROUBLESHOOTING

4-2-4. When ICE MAKER(FF) does not operate

1. Water will be automatically supplied to the Ice Maker depending on temperature & 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.
(Fridge Ice Maker) 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 back 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.
Displays ERROR Code
Micom(IC01) Operation Status
Stand-by
#50
(Test Switch)
5V
Micom(IC01) Operation Status
Before
Standby Rotation
finishing
#22 (Blade
0V 4.9V 4.9V
Ice Scoop)
Ice maker Operation Status
Home → Motor CCW Rotation → Motor CW Rotation
→ Water Supply → Normal ('Ding Dong' Sound)
rotates when pressing the Ice Maker testing
On
switch (over 1.5 sec)?
0V
Input Voltage of IC01 MICOM
Completed
0V
supplied in 6 minutes (After detecting the full
bucket and its horizontality)?
Is the ICE Maker Sensor normal?
PCB & Ice Maker Related Parts are normal.
Check all the Wire Connections again.
Start
Ice Maker
Yes
#22 is normal?
Yes
Is the water
Yes
Yes
84
Opration Condition while Motor is rotating
Micom(IC01) Operation Status
Stand-by
Motor Load (IC01 #21)
Heater Load (EX01 #10)
Heater operates differently according to the
conditions. Test Mode operation will be 30 sec.
No
1) Check & Replace ICE MAKER KIT.
2) Check Main PCB Input Signal & Replace it.
(Micom IC01 Pin #90 - "0V")
No
1) Check Wire Connection.
2) Check & Replace ICE MAKER KIT.
3) Check & Replace MAIN PCB.
No
1) Check & Replace Water Valve.
* Refer to Water Valve Operating Conditions.
2) Check & Replace Main PCB.
No
1) Check & Repair ICE Maker Sensor.
* Refer to it when ICE Maker Sensor is defective.
On
0V 5V
0V 5V