Daewoo FR-420N Service Manual page 19

10. Error Display
INPUT
PCB Control Panel Buttons / Door
- ERROR DISPLAY
- To confirm error happens or not, push S-COOL" button for continuously and "TEMP" button 5 times.
- To stop the Error Display Set, push "TEMP" button 1 times, or wait 4 minutes.
- After operations back to normal, the displays come to be reset.
A. R1 ERROR
(It happens when R-Sensor is OPEN or SHORT)
- DISPLAY : STEP "3" LED is on & off continually.
- CONTROL :
; Controlled by the following condition of RT
; When "RT ERROR" happens at the same time, "COMP. ON/OFF Operating Time" is 16min/24min.
RT sensor TEMP
COMP. Operating TIME
(ON/OFF)
- CANCEL : when R-Sensor is working normally.
B. RT ERROR
(It happens when RT-Sensor is OPEN or SHORT)
- DISPLAY : STEP "2" LED is on & off continually.
- CONTROL : Delete the conditions of "RT-sensor Control" and operate normally.
- CANCEL : when RT-Sensor is working normally.
C. D1 ERROR
(It happens when D-Sensor is OPEN or SHORT)
- DISPLAY : STEP "1" LED is on & off continually.
- CONTROL : Return to next limit defrost time (40 min)
- CANCEL : when D-Sensor is working normally.
D. DR ERROR
(It happens when the system senses door opens more than 1 hour.)
- DISPLAY : STEP "2", "3" LED Lamps are on & off continually.
- CONTROL : Deletion of function related door switch sensing
- If door switch (open & close) is sensed, the error is terminated
automatically
E. C1 ERROR
(When D-Sensor is more than -5C, Comp operates over 3 hrs)
- DISPLAY : STEP "1" & "3" LED Lamps are on & off continually.
- CONTROL : The system is normally operating
- CANCEL : When Comp is off, D-Sensor is less than -5C.
F. F3 ERROR
Return to next step after max defrost time.
( 60 minutes )
6.1- DISPLAY : STEP "1" & "2" LED Lamps are on & off continually.
6.2- CONTROL : At Defrost Mode, Deletion of "PRE-COOL" Mode.
6.3- CANCEL : Completion of defrost returned by D-Sensor.
- If the appliance is normal (no error), just '4' and '5' LED flicker in Error Mode.
~13C ~19C ~29C
6/34 10/30 16/24
18
CONTROL OBJECT
LED Lamp
(Unit : min)
29C ~
20/20
CODE
R1
RT
D1
DR
C1
F3
- To Confirm Errors:
Push "S-COOL" for
continuously and "TEMP"
button 5 times.
- The Priorities of Error :
R1→RT→D1→DR→C1→F3
FUNCTIONS
flicker
LED ERROR
"3" R sensor
"2" RT sensor
"1" D sensor
DR Switch
"2", "3"
Cycle
"1", "3"
Defrost
"1", "2"