Samsung RF267ABBP - If Ice Water Is Not Supplied

79
TROUBLESHOOTING
4-2-12. If ICE Water is not supplied
Start
Is the confirming sound of
the valve operation heard when
Ice maker test switch pushed?
Does Main PCB MICOM
#12 have high (5V)output?
Does Main PCB IC73
#13 have about 0.7V
output?
Is the contact point of main
PCB RELAY RY79 normal?
MAIN PCB normal
-- Need to check the other parts
① Check the wire between Ice
water valve↔MAIN PCB
② Ice water valve itself has trouble
or bad contact of connector
③ Check the connection hose
Normal(Check Ice
water valve hose)
Check soldering
short/Replace PCB
Check soldering
short/Replace PCB
Check soldering
short/Replace PCB
typical PCB Ground CN1#3(Black)
☞ Checking method of voltage Based on
PCB typical Ground CN1#3(Black)
1) Check the voltage of IC73#4(same voltage
as IC02 #12)
- ICE Water valve operating (about 5V±0.5V)
Based on PCB typical Ground CN1#3(Black)
2) IC73 #13 voltage
- ICE Water valve operating (about 0.7V±0.5V)
3) Check the voltage of ICE Water Valve
operating(AC voltage)
=> For checking the Relay RY79 operating.
CN70#1(Red) ↔ CN73#7(Purple)
- ICE Water valve waiting (about AC 0V)
- ICE Water valve operating (about AC 110(230)V ± 20%)
AW-BEST_SM(267)-0221 2008.2.21 8:37 PM 페이지79