* Self-diagnosis CHECK LIST
To do list
LED
Item
Trouble contents
Diagnostic method
F
R
Ice Maker(FZ)
Function
Error
When the Freezer Ice Maker error
occurs more than 3 times, the
error will be displayed.
After replacing the Ice Maker, check if it
operates normal.
"Flex Zone-
Damper-
Heater
Error"
Display error when open error
is detected by damper heater :
separation of Damper Heater
housing part, contact error,
disconnection, short circuit.
After separating MAIN PCB CN77 wire
from PCB, resistance value between
Black ↔ Brown wire shall be 135 ohm
±
7%. 0 ohm : heater short, ∞ Ohm : wire /
bimetal Open.
FZ-Ice Pipe
Heater Error
The error occurs when there is a
wire connector slip-out of the
Water Supply Pipe Heater, a
contact error or a breakage in the
wiring.
When measuring the resistance of the
Main PCB CN79 Yellow-Pink wires, it
should be within 102Ω
±
7%. 0Ω : heater
short, ∞Ω : Check for Wire Open or
onnector Slip-out
Ice Maker(FF)
Function
Error
Display error when open error is
detected by Heater : separation
of Ice Pipe Heater housing part,
contact error, disconnection,
short circuit.
After changing the Ice Maker(R), plug
the refrigerator power code again, and
check the operation.
Ice Room-FAN
Error
Display error during operation of
applicable fan motor : Feed back
signal line contact error rnotor
wire separation motor error.
When measuring the voltage between
the Main PCB CN76-"5"
↔
CN76-"1", it
should read between 7.0V~12V.
5. Check the installation status
5-1. Function for failure diagnosis
135
