52
TROUBLESHOOTING
※
Self-diagnostics check list
F
R
LED
Item
Trouble contents
Diagnostic method
F
R
or
I/O Expander
Communication Error
Display 46Er in the panel :
I/O Expander
↔
Main MICOM
communication error.
It is desirable to replace Main PCB.
The F compartment
abnormal
hightemperature
indicator blinks
When the freezer temperature is
abnormally high or the freezer door is open
for a certain period of time and the freezer
temperature increases, the freezer display
blinks.
The temperature has been abnormally
increased. Check if the door has been open
for a long time or if hot food has been stored in
the compartment. If the reason for the error is
removed, the error code disappears after a pre-
determined period of time.
The R compartment
abnormal
hightemperature
indicator blinks
When the freezer temperature is
abnormally high or the fridge door is open
for a certain period of time and the fridge
temperature increases, the fridge display
blinks.
Check if door has been open for a long time or
if hot food has been stored in the compartment.
If the reason for the error is removed, the error
code disappears after a pre-determined period
of time.
Comp starting Failure
Error
When the Compressor fails starting
Check if there is a short between compressor
terminals. Check IPM Voltage [Under 13.5V]
Check if there is a short between IPM Pins
[#1~33]
Check the Compressor and the Cycle
IPM Fanlt Error
When there is a IPM Fault error
Comp Abnormal
current Detection
Error
When there is abnormal current detected
at the Compressor
Check the Compressor connections Check the
voltage of Resistance of R308
[0.09Ohm] Check the Compressor and the
Cycle
Motor Locked Over
RPM Error
When there is a Compressor restriction
error
Check the voltage of Resistance of R308
[Short/Open] Check the voltage of both of
C103 terminals [Unstable Voltage] Check the
Compressor and the Cycle
Comp under voltage
Error
When there is a low voltage error
Check the voltage of Resistance of R513 [Short/
Open]
Comp over voltage
Error
When there is a over voltage error
Check the voltage of Resistance of R501, R505,
R509 [Short/Open]
