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4-5. Self-Diagnostics Function
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.
4. Troubleshooting and major adjustment
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