Samsung RS261MD Series Service Manual page 59

4. TROUBLESHOOTING
4-18) If Ice-Maker does not operate(In door type Ice Marker)
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
exploded 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 #3)
operation Ready
Test Switch
5V 0V
micom operation Status
before
Ready Rotation
complete
cn90 #6
0V 4.9V 4.9V
(bl a de ice Scoop)
cn90 #5
0V 0V 4.9V
(guide ice Full)
Start
Does ice maker
rotate when pressing the ice maker
testing switch(over 1.5 sec)?
is the input voltage of
cn90 #5, #6 normal?
Retuming
0V
is the water supplied
in 6minutes (After sensing ice
0V
bucket fully)?
is the ice maker Sensor unit
normal?
no trouble with PbA and temperature sensor,
check the bad wiring connections.
57
operating condition when motor rotates
operating Status of micom(ic00)
motor load (#82)
heater load (#81)
yeS
heater operates differently according
to the conditions. Test mode operation
will be 30 sec.
no
1) Replace the ice maker Kit
2) check/Replace the main PbA input signal
yeS
(cn90 Pin #3 - "0V")
no
1) check the wiring connections.
yeS
2) Replace ice maker Kit
3) Replace mAin PbA
no
1) Replace the Water Valve
*
Refer to the operation condition of Water Valve
yeS
2) Replace the main PbA
no
1) Replace the ice maker Sensor
yeS
*
Refer to the solution "Self-Diagnosis error
(Defective sensor)"
Ready operation
0V 5V
0V 5V