4-19) If Ice Maker Does Not Operate - Samsung RH25H561 Series Service Manual

TROUBLESHOOTING
4-19) If lce Maker does not operate
1. Water is automatically supplied to the Ice Maker by temperature & time.
Ice Maker Dispenses cubed or crushed ice.
2. Power is applied to the one end of wires. Be careful when disassembling and should refer to diagram in any
case.
3. Ice Maker operation should be checked after pressing the Ice Maker testing switch.
(Freezer Ice Maker) It is unable to check when the power is disengaged.
4. We recommend that TWO PEOPLE check the PBA and Ice Maker because they are located at front and rear
side each.
5. Be careful! The Ice Maker Heater can cause personal injury like burn.
Operation Status (CN90 #4)
Operation
Test Switch
5V
MICOM(IC02) Operation Status
Ready Rotation
Complete
CN90 #6
0V 4.9V
(Bl a de Ice Scoop)
CN90 #5
0V 0V
(Gui d e Ice Ful l )
rotate when pressing the Ice Maker
testing switch(over 1.5 sec)?
Ready
0V
Is the input voltage of
CN90 #5, #6 normal?
Before
Retuming
4.9V 0V
in 6minutes (After sensing ice
4.9V 0V
Is the Ice Maker Sensor unit
No trouble with PBA and temperature sensor,
Check the bad wiring connections.
Operating Condition when motor rotates
Operating Status of Micom(IC00)
Start
Motor Load (#29)
Heater Load (#28)
YES
Heater operates differently according to
the conditions.
Test Mode operation will be 30 sec.
Does Ice Maker
NO
1) Replace the Ice Maker Kit
2) Check/Replace the Main PBA Input signal
YES
(CN90 Pin #4 - "0V")
NO
1) Check the wiring connections.
YES
2) Replace Ice Maker Kit
3) Replace MAIN PBA
Is the water supplied
NO
bucket fully)?
1) Replace the Water Valve
*
Refer to the operation condition of Water Valve
YES
2) Replace the Main PBA
NO
normal?
1) Replace the Ice Maker Sensor
YES
*
Refer to the solution "Self-Diagnosis
63
Ready
0V
0V
error(Defective sensor)"
Operation
5V
5V