M2 MC2125PALS Service Manual page 33

Operation Function
� Self-diagnostics check list
NO Error
①
ICE-MAKER SENSOR
② R-SENSOR
③
R-DEF-SENSOR
④
R-FAN ERROR
⑤
I/M function error
⑥ R-DEFROST ERROR
⑦
EXIT-SENSOR
⑧
F-SENSOR
⑨
F-DEF ERROR
⑩
F-FAN ERROR
⑪
C-FAN ERROR
⑫
F-DEFROST ERROR
� Error items of self-diagnostics
NO Error items
01
I/M-SENSOR
02
R-SENSOR
REF DEFROST
03
SENSOR
04
R-FAN ERROR
I/M function
05
ERROR
R-DEFROST
06
ERROR
Ambient Air
07
SENSOR
08
F-SENSOR
FRE Defrost
09
SENSOR
10 F-FAN ERROR
C-FAN ERROR
11
(COMP-FAN)
F-DEFROST
12
ERROR
If any LEDs blink, the corresponding sensors and
components must be checked for an error.
LED Display
I/M sensor connector missing; contact
failure, electric wire cut, short-circuit; I/M-
sensor failure; and so on
REF sensor connector missing; contact
failure, electric wire cut, short- circuit; R-
sensor itself failure; and so on
REF evaporator internal defrosting sensor
connector missing; contact failure, electric
wire cut, short-circuit; sensor itself failure;
and so on
R-Fan motor operation failure; feedback
signal line contact failed, electric wire cut,
short- circuit; and so on
Ice-ejector and level failed three times
or more
In the refrigerator room, if frost removal
mode is finished due to limited time of
80 minutes. Error is displayed.
Air sensor connector missing; contact
failure, electric wire cut, short-circuit;
open air sensor itself failure; and so on
FRE sensor connector missing; contact
failed, electric wire cut, short-circuit; F-
Room sensor itself failure.
FRE evaporator defrosting sensor
connector missing; contact failed,
electric wire cut, short-circuit; sensor
itself failure; and so on
F-Fan motor operation failure; feedback
signal line contact failure, motor's electric
wire missing; and so on.
C-Fan motor operation failure; feedback
signal line contact failure, motor's electric
wire missing; and so on.
In the freezer room, if frost removal mode
is finished due to limited time of 70
minutes. Error is displayed
Details
Indicate Error when the temperature sensed
by I/M-sensor is higher than 65℃ or lower than
-50℃.
Indicate Error when the temperature sensed
by R-sensor is higher than 65℃ or lower than
-50℃.
Indicate Error when the temperature sensed by R
defrosting sensor is higher than 65℃ or lower
than -50℃.
Indicate Error if the F and G signals generated by the
FAN-motor operation are not input.
Indicate Error when the temperature sensed by
the open air sensor is higher than 65℃ or lower
than -50℃.
Indicate Error when the temperature sensed
by F-sensor is higher than 65℃ or lower than
-50℃.
Indicate Error when the temperature sensed by
F-defrosting sensor is higher than 65℃ or
lower than -50℃.
Indicate Error if the F and G signals generated by
the FAN-motor operation are not input.
Indicate Error if the F and G signals generated by the
FAN-motor operation are not input
34
Remarks
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