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8.7 Troubleshooting With Error Display
1) Display Error Indication Code (Dot Display Type).
?
LED OFF
?
LED ON
Error Code Indication on Display panel:
No.
ITEM
ERROR INDICATION
REF Notch
Freezer Notch
1
Abnormal Freezer
Sensor
(1)
All LED OFF
CONTENTS
REMARKS
Wire open, Short
Circuit, temperature
sensor damaged,
Main PCB
damaged.
Check for loose
connections on
Main PCB,
Damage on wires,
Resistance value of
thermistor
(Temperature
Sensor)
2
Abnormal
Refrigerator
Sensor
(1)
All LED OFF
3
Abnormal Defrost
Sensor
(1)
All LED OFF
4
Abnormal Room
Temperature
Sensor
(2)
All LED OFF
5
Abnormal Ice
Maker Sensor
(2)
All LED OFF
6
Abnormal Ice
Maker Unit
(2)
All LED OFF
Wire open, Short Circuit,
Loose connection, defective
HALL IC, Defective Ice
Maker Motor.
Check for motor stuck,
twisted tray ice, loose
connections on main PCB or
Freezer compartment.
7
Unsuccessful
Defrosting
Operation
(1)
All LED OFF
Defrost Sensor does not
reach 8°C during 1 hour after
start the Defrost process.
Check M -Fuse, Check for
loose connections on Main
PCB, Check for loose
connections on Freezer
compartment.
8
Freezer Fan BLDC
Motor abnormal
operation
(1)
All LED OFF
There is not signal from
BLDC motor during 115
seconds after start BLDC
operation.
Check for motor stuck, Loose
connections on Main PCB
and Freezer compartment,
check for damage on wires.
NOTE (1) : Items No. 1, 2, 3, 7 & 8 are considered primary errors, when any of these error is present in
the refrigerator unit, it will be displayed after 3 hours from it occurs. Anyway, if you press ICE PLUS +
FREEZER TEMP keys simultaneously for more than 3 seconds, you can check if any error is present in
the refrigerator unit, regardless if the time to be displayed (3 hours) already has passed or not.
NOTE (2) : Items No. 4, 5 & 6 are considered secondary errors, these error only can be displayed when
you press ICE PLUS + FREEZER TEMP keys simultaneously for more than 3 Seconds.
NOTE (3) : If there is not errors present in the refrigerator unit, and you press ICE PLUS + FREEZER
TEMP keys simultaneously for more than 3 seconds, refrigerator unit will enter to TEST MODE #1 (Check
the section “HOW TO ENTER TO TEST MODES” for reference.
Summary of Contents for LFC20770SB
Page 23: ...6 CIRCUIT DIAGRAM 22 CIRCUIT DIAGRAM ...
Page 24: ...CIRCUIT DIAGRAM 23 ...
Page 27: ...7 2 PCB FUNCTION CON 1 CON 3 CON 2 CON 8 CON 9 CON 7 CON 6 CON 5 CON 4 26 ...
Page 37: ... 36 LED Lamps P No LED Lamp R EAV61711901 Picture LED Lamp F EAV60892210 ...
Page 94: ...June 2011 MFL62526036 ...