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No
Yes
No
Replace
Main PCB
Replace
Second
Water-valve
In Water Mode,
Is the voltage between
pin4 and pin11 of CON3 in
main PCB like as below,
while pushing the level
switch?
Second Water- valve
Is the resistance value of
Second-water valve like as
below?
No No
Replace
First
Water-valve
Replace
Micro
Switch
First Water- valve
Is the resistance value
between (1) and (2) of the
First-water valve like as
below?
Is the condition of
the micro switch like as
below?
After plug in,
explain to the customer!
Yes
Yes
Yes
Main PCB
CON3
Pin11 GN
Pin4 BL
(1)
(1)
(1)
(2)
(2)
(2)
115 Vpin4 to pin11
ResultTest Point
Output voltage of machine room water valve
360 ~ 420 Ω(1) to (2)
ResultTest Point
Checking resistance of Second-valve
Dispenser
Ice Maker
In door
360 ~420 Ω(1) to (2)
ResultTest Point
Status
Normal
Push the Lever
Tester
Infinity
0 Ω
Checking resistance of First-valve
Machine room