☞ Checking method of voltage Based on
PCB typical Ground J23 JUMMPER
1) Check the voltage of IC73-"4"(same
voltage as IC01 “104”)
- ICE Water valve waiting (about 0V)
Based on PCB typical Ground J23
JUMMPER
2) IC73-"13" voltage
- ICE Water valve Waiting (about 12V±0.8V)
- ICE Water valve operating (about
0.7V±0.5V)
6. Self Diagnosis & Trouble Shooting
6-13. If ICE Water is not supplied
To do list
YES
YES
Check soldering
short/Replace PCB
NO
YES
Check soldering
short/Replace PCB
NO
Does Main PCB IC01
MICOM #104 voltage have
high(5V) output?
Is the contact point of
main PCB
RELAY RY73 normal?
207
YES
Check soldering
short/Replace PCB
NO
Does Main PCB
IC73-"13" have about 0.7V
output?
YES
Check soldering
short/Replace PCB
NO
Is the contact
point of main PCB RELAY
RY78 normal?
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