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DIAGNOSTIC
6-9) If Ice Cubed or/and Ice Crushed don't work normally
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What is the ice status on the panel Display?
Does ice come out when drawing ice?
Do ice cubed come out when
drawing ice?
It operates with the Freezer door closed.
cubed ice
YES
NO
Does MAIN MICOM No. 14
change
to 0V when pressing ice s/w?
YES
Does MAIN MICOM No. 17 change to
0V when pressing and holding ice s/w?
YES
Is the contact terminal of RY7E
relay 0 Ω when pressing ice s/w?
YES
crushed ice
YES
NO
NO
NO
Normal Main PCB
- Need to check other sections.
Check the wire between AUGER MOTOR and MAIN PCB.
Failure of CUBE MOTOR itself or connecting connector
contact failure.
Normal Main PCB
- Need to check the other sections.
Check the wire between AUGER MOTOR and MAIN PCB.
Failure of CUBE MOTOR itself connector contact failure.
Measure both terminals of RY7C
contact point after disconnecting CN72
and CN73 connectors.
Does crushed ice come
out when pulling ice out?
No
Is there ice in the ice storage bin?
YES
Does Main MICOM No. 14 change
to 0V when pressing ice s/w?
YES
Did cube motor move to ice crushed
location? (Load MICOM No. 28 is 5V?)
YES
Does IC74 No. 17 change to 0V
when pressing and holding ice s/w?
YES
Is RY7E RELAY contact terminal
0Ω even when power off?
YES
Check point of contact of ice drawing S/W
Check point of contact of door S/W.
Check point of contact of ice transfer motor.
Check point of contact for wiring of the ice transfer motor
Is the ice selection on panel
for ice off?
Release the icing stop Select ice
ice cubed/crushed
YES
1)
Check water supply hose. - bent or turned off.
2)
Check water supply parts for icing solenoid check
3) Check icemaker wire.
Normal working condition
YES
Normal Working Condition
No
Main PCB failure: Replace it.
No
- When LOAD MICOM No. 28 is 0V continuously,
CUBE MOTOR and IC74 should be checked.
- Check CUBE MOTOR S/W.
- Check CN73,CN40 WIRE.
No
Main PCB failure: Replace it (IC74 Failure).
Measure the both terminals of RY7E contact point
after disconnecting CN72 and CN73 connectors.
No
Main PCB failure: Replace it.
(RY7E Relay contact terminal short failure)
- Check ice s/w has failure itself.
- Check connected.
- Main PCB failure: Replace it.
NO
NO
Main PCB failure: Replace it
(IC74 failure).
NO
- RY7E relay failure
- Main PCB failure: Replace it.
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