TROUBLESHOOTING

4-2-14. If Cubed or Crushed Ice is not supplied

Start

Are Ices ejected?

Yes

No

Freezer door shall be closed during operation.

No

Which mode is

selected?

Cubed Ice

Are Ices in the Ice bucket?

Check the Ice making switch Check the DOOR Switch Check the Ice moving motor

Check the wiring connections of Ice moving motor Check if the COVER ICE ROUTE opens Check the Q706 movement related with AUGER_MOTOR safety

Crushed Ice

Is “Ice Off” mode

selected on the display

panel?

Yes

Cancel the “Ice Off”

No

Check the water pipe : bending / Shut off

heck route of ice check solenoid Check he Ice Maker wiring

Cubed Ice ejected

Yes

Is Cubed Ice ejected?

No

Is Cubed Ice mode

selected on the panel PCB?

Yes

Is the CUBE MOTOR positioned at cubed ice mode?

Normal Operation status

No

Cubed Ice selected

No

Is Crushed Ice ejected?

 

 

 

 

No

 

 

 

 

 

Normal Operation status

 

Is Crushed Ice mode

No

selected on the

 

 

 

 

 

 

panel PCB?

 

 

 

 

Yes

 

Crushed Ice selected

 

Is the CUBE MOTOR

No

positioned at cubed

 

 

 

ice mode?

 

 

 

 

 

 

Yes

Is MICOM IC01 #103 change into 0V when press Ice switch?

Yes

 

Check the wire connections/

 

Yes

Check the wire connections/

 

Cube Solenoid

 

 

Motor Cube

No

Is MICOM IC01 #103

No

 

 

 

change into 0V when

 

 

 

 

 

 

 

 

 

 

press Ice switch?

 

 

 

 

 

 

 

 

 

 

 

Yes

- Check the Ice switch has trouble itself

 

- Check the Ice switch has trouble itself

 

 

- Check the wire connections

 

 

- Check the wire connections

 

- Replace the MAIN PCB

 

 

- Replace the MAIN PCB

 

 

 

 

 

 

 

Is the Dispenser

No

 

 

 

Is the Dispenser

Cover opened?

 

 

 

 

Cover opened?

- ICE S/W self diagnosis

 

 

 

 

Yes

 

 

 

 

 

Yes

 

 

 

- Check the connecting wires.

 

 

 

 

 

 

 

 

 

 

- MAIN PCB failure : Replace

 

 

 

 

 

 

Is IC73 #1,2 changed

No

 

 

Is IC73 #2 changed

into 5V when pressing

 

 

 

into 5V when pressing

Ice Switch?

 

 

 

 

 

Ice Switch?

 

 

 

 

 

 

 

 

Yes

 

Replace the MAIN PCB

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Errors on IC01)

 

 

 

 

 

 

Is the contact

No

 

 

 

Is the contact

point of RY7A & RY7B RELAY

 

 

 

point of RY7A RELAY

changed into 0

 

 

 

 

changed into 0

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

Yes

After disconnecting the

 

 

- RY7A, RY7B RELAY Error

After disconnecting the

 

 

 

 

 

 

 

 

 

- Replace the MAIN PCB

 

 

 

 

 

CN70, CN71and 13P

 

 

 

 

 

CN70, CN71 and 13P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(CN73, CN74) measure

 

 

 

 

 

 

 

(CN72, CN73), measure

 

the both ends of contact

 

 

 

 

 

 

 

the both ends of contact

 

points of RY7A, RY7B

 

 

 

 

 

 

 

points of RY7A.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If MAIN PCB is normal

 

 

 

 

 

 

 

 

 

 

- Need to check the other parts

 

 

 

 

 

 

 

 

 

 

AUGER MOTOR

MAIN PCB

 

 

 

 

 

 

 

 

 

 

Check the door wiring connections.

 

 

 

 

 

 

 

 

 

 

CUBE MOTOR

MAIN PCB

 

 

 

 

 

 

 

 

 

 

Check the door wiring connections/trouble their own or bad wiring connections.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

check the WIRE & Motor

check Cover ice route S/W 1,2

Replace the MAIN PCB

No

Replace the MAIN PCB

(Errors on IC01)

No

-RY7A RELAY Error

-Replace the MAIN PCB

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