You need to try the dispenser and see if there is water coming out there. If not, the tank may be frozen or the filter may be bad. If all is good in the dispenser, then you will test for power to the water valve when the icemaker cycles. You will use a multi-meter to do this. If this fails, you will need to go into self diagnostics.
1) Self-Diagnostics in the initial Power ON
1-1)The control board performs a self diagnostics test within 1 second and check out the temperature sensors abilities.
1-2) If a sensor failure occurs, a corresponding LED segment will blink with a beep.
1-3) When a LED segment blinks, only the cancellation function (Press Power Freeze and Power Cool buttons
simultaneously for 8 seconds) is acceptable.
1-4) After a replacement of bad sensor or a cancellation of this function, this self diagnostics will end.
2) Self-Diagnostics in the normal operation
2-1) To select this function, press Power Freeze and Power Cool buttons simultaneously for 8 seconds with an audible
tone.
2-2) In the self diagnostic mode, only corresponding LED segments will be illuminated (see the check list on the next
page)
2-3) After a 30 second illumination of error signal, the system will return to the normal operation.

􄤋 Self-diagnostics check list
If any LEDs blink, the corresponding sensors and
components must be checked for an error.
① ICE-MAKER SENSOR
② R-SENSOR
③ R-DEF-SENSOR
④ R-FAN ERROR
⑤ I/M function error
⑥ CoolSelect ZoneTM SENSOR
⑦ EXIT-SENSOR
⑧ F-SENSOR
⑨ F-DEF ERROR
⑩ F-FAN ERROR
⑪ C-FAN ERROR

If any LEDs blink, the corresponding sensors and
components must be checked for an error.