Daewoo FRU-5711-FRS-U20DA Series Service Manual page 23

4-10. Error Display
4-10-1. FRS(N)-U20IA (LED Display of Inner Control)
Temperature Control Buttons
1. How to start
1) Press "FRZ.TEMP" button 5 times while pressing
"REF.TEMP" button at the same time.
2. How to stop
1) Push "FRZ.TEMP" button 1 time.
2) It stops automatically in 4 minutes from the start.
3. All the error codes are reset if they turn to be normal.
4. Error display
CONTENTS
F-sensor : open ("Lo"), short ("Hi")
R-sensor : open ("Lo"), short ("Hi")
RT-sensor : open ("Lo"), short ("Hi")
D-sensor : open ("Lo"), short ("Hi")
R-Door Switch : defective
F-Door Switch : defective
Cycle : defective
Return after defrosting : defective
EEPROM : defective
Full Down mode
Forced defrost mode for A/S
(Full down mode and forced defrost mode are displayed while pressing
"REF.TEMP" button at the error display mode)
INPUT
CONTENTS
Display
FRZ. LED "5" is on and off
FRZ. LED "4" is on and off
FRZ. LED "3" is on and off
FRZ. LED "2" is on and off
FRZ. LED "1" is on and off
REF. LED "5" is on and off
REF. LED "3" is on and off
REF. LED "2" is on and off
REF. LED "1" is on and off
REF. LED "1" is on
REF. LED "1" is on and off (twice)
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CONTROL OBJECT
Lamp LED of Inner control
REMARKS