If Cubed Or Crushed Ice Is Not Supplied - Samsung RF28R7201 AA Series Service Manual

TROUBLESHOOTING

4-2-13. If Cubed or Crushed Ice is not supplied

Start
Are Ices ejected?
Which mode is
selected?
Is Cubed Ice ejected?
Is Cubed Ice mode
selected on the
panel PCB?
Is the CUBE MOTOR
positioned at cubed
ice mode?
Is MICOM IC01 #55
change into 0V when
press Ice switch?
Is the Dispenser
Cover opened?
Is IC72 "2", "3" changed
into 5V when pressing
Ice Switch?
Is the contact
point of RY7 & RY7D RELAY
changed into 0Ω
After disconnecting the
CN71_1
measure The both ends
of Contact points RY7.
Fridge door shall be closed
during operation.
No
Yes
Are Ices in the Ice bucket?
① Check the Ice making switch
② Check the DOOR Switch
③ Check the Ice moving motor
④ Check the wiring connections of Ice moving motor
⑤ Check if the COVER ICE ROUTE opens
⑥ Check the Q701 movement related with AUGER_
MOTOR safety
Crushed Ice
Cubed Ice
Cubed Ice ejected
No
Normal Operation status
No
Yes
Cubed Ice selected
No
Yes
Check the wire connections/
Cube Solenoid
No
Yes
- Check the Ice switch has trouble itself
- Check the wire connections
- Replace the MAIN PCB
No
- ICE S/W self diagnosis
Yes
- Check the connecting wires.
- MAIN PCB failure : Replace
No
Yes
Replace the MAIN PCB
(Errors on IC01)
No
Yes
- RY7 & RY7D RELAY Error
- Replace the MAIN PCB
If MAIN PCB is normal
- Need to check the other parts
① AUGER MOTOR ↔ MAIN PCB
Check the door wiring connections.
② CUBE MOTOR ↔ MAIN PCB
Check the door wiring connections/trouble their own or bad wiring connections.
No
Is "Ice Off" mode
selected on the display
panel?
Yes
Cancel the "Ice Off"
Is Crushed Ice ejected?
Is Crushed Ice
mode selected on the panel
PCB?
Is the
CUBE MOTOR positioned at
cubed ice mode?
MICOM IC01 #55
change into 0V when press Ice
switch?
Is the Dispenser
Cover opened?
Is IC72
#3 changed into 5V when
pressing Ice Switch?
Is the contact
point of RY7 RELAY
changed into 0Ω
After disconnecting the CN71_1
measure The both ends of
Contact points RY7.
94
No
① Check the water pipe
: bending / Shut off
② heck route of ice check solenoid
③ Check he Ice Maker wiring
Yes
Normal Operation status
No
No
Crushed Ice selected
Yes
No
Check the wire connections/
Yes
Is
No
- Check the Ice switch has trouble itself
Yes
- Check the wire connections
- Replace the MAIN PCB
No
check the WIRE & Motor
Yes
check Cover ice route S/W 1,2
Replace the MAIN PCB
No
Replace the MAIN PCB
Yes
No
- RY7A RELAY Error
Yes
- Replace the MAIN PCB
Motor Cube
(Errors on IC01)