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Micom Function
2-10. Failure Diagnosis Function
ERROR CODE on display control panel
To display the error message, press and hold Ice Plus button and Freezer button. If no errors are displayed, all LEDs will be
illuminated. If a primary or secondary error is present, certain LEDs will be illuminated indicating failure mode.
Error Detection
NO
Category
1
Normality
2
Freezer Sensor
Error
3
Refrigerator
Sensor 1 Error
Defrosting
4
Sensor Error
Refrigerator
5
Sensor 2 Error
Room Temp
6
Sensor Error
7
Poor Defrosting
Abnormality of
8
BLDC FAN Motor
for Freezer
Abnormality of
BLDC FAN Motor
9
for Machinery
Room
Communication
10
Error
11
Humidity Sensor
Error
NOTE 1:
1) Errors are divided in primary and secondary errors.
2) Secondary errors only can be displayed by performing "DISPLAY LED CHECK"
pressing ICE PLUS & FREEZER buttons
all LED are turned ON, errors are not present.
3) When a primary error occurs in the refrigerator, this error will be showed by display
after 3 hours after first occurrence. Anyway, if you perform "DISPLAY CHECK LED"
you can see the error present in the unit, regardless the time elapsed from the first
occurrence.
SECONDARY ERROR INDICATOR LIGHT
REFRIGERATOR SENSOR (2) (LOWER SENSOR
IN REFRIGERATOR COMPARTMENT) .........................................."ICE PLUS" INDICATOR WILL NOT LIGHT
ROOM TEMPERATURE SENSOR ................................................."FREEZER TEMPERATURE LOWER" INDICATOR
HUMIDITY SENSOR ......................................................................."WATER" INDICATOR WILL NOT LIGHT
Error Display
simultaneously for more than 5 seconds, If
Error Generation Factors
None
Normal Operation of Display.
Short or Disconnection of
Freezer Sensor
Short or Disconnection of
Refrigerator Sensor
Short or Disconnection of
Defrosting Sensor
Short or Disconnection of
Refrigerator Sensor 2
Short or Disconnection of
Room Temp. Sensor
Even though it is passed 1
hour since then Defrosting, if
Defrosting sensor is not over
+41ºF (5ºC), it is caused
It is caused when feedback
signal isn't over 65 seconds
Poor BLDC Motor connection,
during BLDC FAN motor
operating
It is caused when feedback
signal isn't over 65 seconds
Poor BLDC Motor connection,
during BLDC FAN motor
operating
Communication Error
between Micom of Main PCB
and Display Micom
Short or Disconnection of
Humidity sensor
Remarks
Check each sensor and its
connector
.
Temperature Fuse
Disconnection, Heater
disconnection, DRAIN Jam,
Poor Relay for Heater
DRIVE IC and TR
DRIVE IC and TR
Poor Communication
connection, Poor TR of
Thermistor and Receiver
Tx/Rx between display and
main board
Poor connection of housing,
missing Humidity sensor
,
sensor defect itself, short or
disconnection of harness
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