Daewoo FRS-2021 - Power Failure Troubleshooting

1. Power failure of refrigerator (F/R lights OFF / F-PCB power OFF)
Change the fuse
(AC 250V 15A)
(The fuse is in the left of machine room
of refrigerator back.)
Failure Checkup & Troubleshooting
Start
Power cord or fuse is
disconnected ?
1
st
power of SMPS is ON ?
Main PCB Fuse is
disconnected ?
12V,16V,5V on M-PCB is
OK ?
Wire connection of F-PCB
is OK ?
Check power cord connection in
machine room and to CN1 of M-PCB.
Change F-PCB AS.
Change Main-PCB.
Change the fuse.
(AC 250V 3.15A)
(The fuse is on the M-PCB.)
Checkup and connect F-PCB wires.
Y
N
N
Y
N
Y
Y
N
Y
N
Note) Change of F-PCB
1) Insert a flat tip driver into the left down groove of panel frame and snap it out smoothly.
2) Remove housing from F-PCB and screws on the board to change for a new one.
* Assembling is the reverse order of disassembling.
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