Service Manual

69
13-9) When Ice Water Valve does not operate (Option)
1. While disassembling,make sure to cut off water since the ice water valve is directly
connected with water.
2. Make sure to avoid the electric shock while disassembling because one end of wire is
applied with power.
3. Check the operation of the ice water valve only after the ice maker test switch is pressed.
(F-Room Ice Maker)
Pre-Check
NO
NO
NO
NO
Normal (check the
ice water valve hose)
Is the
confirming sound of
the valve operation heard when
Ice Maker Test S/W
pushed?
Does Main
PCB MICOM #31
have high (+5V)output?
Does Main PCB IC70 #18
have low (0V)output?
Is the contact
point of main PCB RELAY
RY71 normal?
ICE WATER VALVE
OPERATION CHECK
YES
Check short-out
Soldering / PCB change
Soldering short
check/PCB change
YES
Soldering short
check/PCB change
- Reference
* Load terminal
check-up method
YES
Main PCB Normal
- Check other parts
① Wire between ice water value
and main PCB
② Water Value defect or
Connection Connector contact
defect
③ Check Connection Hose defect
YES