Troubleshooting; Error Code Summary - LG LFCS25426 Series Service Manual

6. TROUBLESHOOTING

6-1 Error Code Summary

WARNING: When you check the Resistance values, be sure to turn off the power.
And wait for the voltage-discharge sufficiently.
NOTE) 3 hours before the error : Press the Ice Plus button and Freezer button simultaneously
3 hours after the error : All errors, except for "Er rt", "Er HS","Er IS", "Er It" error, are displayed.
Error Detection
NO
Category
1
Normality
Freezer Sensor
2
Error
Refrigerator
3
Sensor Error
Defrosting
4
Sensor Error
Icing Sensor
5
Error
6 Poor Defrosting
Abnormality of
BLDC FAN Motor
7
for Freezer
Abnormality of
BLDC FAN Motor
8
for Mechanic
Room
Communication
9
Error
Humidity
10
Sensor Error
Room Temp
11
Sensor Error
Ice maker kit
12
defect
Error Display
Freezer Ref.
Temperature Temperature
Er FS
Er rS
Er dS
Er IS
Er dH
Er FF
Er CF
Er CO
Er HS
rt
Er
Er rt
- 15 -
Error Generation Factors
None
Short or Disconnection
of Freezer Sensor
Short or Disconnection
of Refrigerator Sensor
Short or Disconnection
of Defrosting Sensor
Short or Disconnection
of Icing Sensor
Even though it is passed
1 hour since then Defrosting,
if Defrosting sensor is not
over 8°C, it is caused
It is caused when feedback
signal isn't over 65 seconds
during BLDC FAN motor
operating
It is caused when feedback
signal isn't over 65 seconds
during BLDC FAN motor
operating
Communication Error
between Micom of Main
PWB and Display Micom
Short or Disconnection
Of Humidity
Short or Disconnection
of Room temp. sensor
Other Electric system error
such as mother,gear,Hall IC,
operation circuit within I/M kit
Remark
Normal operation of Display
Check each sensor and its
connector.
Temperature Fuse
Disconnection, Heater
disconnection, DRAIN Jam,
Poor Relay for Heater
Poor BLDC Motor
connection, DRIVE IC,
and TR
Poor BLDC Motor
connection, DRIVE IC,
and TR
Poor Communication
connection,Poor TR of
Transmitter and Receiver
Check Each sensor and its
Connector
Check Each sensor and its
Connector
When the ice does not drop
even when the I/M Test S/W
is pressed
(same as model applied
Twisting Ice Maker before)