Samsung RF267AE series - 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(R) test switch pushed?
Does Main PCB MICOM
#54 have high (5V)output?
Does Main PCB IC73
#15 have about 0.7V
output?
Is the contact point of main
PCB RELAY RY78 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 REG1 Heater Sink
☞ Checking method of voltage Based on
PCB typical Ground REG1 Heater Sink
1) Check the voltage of IC73#4(same voltage
as IC01 #54)
- ICE Water valve operating (about 5V±0.5V)
Based on PCB typical Ground REG1 Heater Sink
2) IC73 #15 voltage
- ICE Water valve Waiting (about 13V±0.8V)
- ICE Water valve operating (about 0.7V±0.5V)
3) Check the voltage of Fridge Ice Water Valve
operating(AC voltage)
=> For checking the Relay RY78 operating.
CN73 and CN74 combined and use same connector(13p)
CN70#9(Red) ↔ 13P#7(Purple)
- ICE Water valve waiting (about AC 0V)
- ICE Water valve operating (about AC 115V ± 20%)
1. Please shut the water supplying prior to repair.
2. Power is applied to the one end of wires. Be careful when disassembling not to get an electric shock.
AW-SEM Transform(RF267,2#3957D8 2009.8.20 4:54 PM 페 이 지 7 9 i n