DAEWOO ELECTRONICS FRN-U20IC, Service Manual, Page: 21 / 83

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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
INPUT CONTROL OBJECT
CONTENTS REMARKS
Temperature Control Buttons Lamp LED of Inner control
(Full down mode and forced defrost mode are displayed while pressing
“REF.TEMP” button at the error display mode)
REF. LED “1” is on and off (twice) Forced defrost mode for A/S
REF. LED “1” is on Full Down mode
REF. LED “1” is on and off EEPROM : defective
REF. LED “2” is on and off Return after defrosting : defective
REF. LED “3” is on and off Cycle : defective
REF. LED “5” is on and off F-Door Switch : defective
FRZ. LED “1” is on and off R-Door Switch : defective
FRZ. LED “2” is on and off D-sensor : open (“Lo”), short (“Hi”)
FRZ. LED “3” is on and off RT-sensor : open (“Lo”), short (“Hi”)
FRZ. LED “4” is on and off R-sensor : open (“Lo”), short (“Hi”)
FRZ. LED “5” is on and off F-sensor : open (“Lo”), short (“Hi”)
Display CONTENTS
4-9. Error Display
4-9-1. FRS(N)-U20IC Type
”1”
LED No
→
”2” ”3” ”4” ”5”