DONGBU DAEWOO ELECTRONICS BALLISTA2, Service Manual

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2. FUNCTIONS
- ERROR DISPLAY
- If appliance has any errors, LED on the Main PCB is flickering.
- If the appliance is normal (no error), LED IS off.
A. 'R1' ERROR
: It happens when R-Sensor is OPEN or SHORT.
(1) LED DISPLAY: Shortly flickering(0.3sec.) 1 times.
(2) CONTROL:
Controlled by the following condition of RT
※ If 'RT ERROR' happens at the same time, “COMP. ON/OFF Operating Time” is 30min/26min.
(3) RELEASE: When R-Sensor is working normally.
B. 'RT' ERROR
: It happens when RT-Sensor is OPEN or SHORT.
(1) LED DISPLAY: Shortly flickering(0.3sec.) 2 times.
(2) CONTROL: Delete the conditions of 'RT-sensor Control' and operate normally.
(3) RELEASE: When RT-Sensor is working normally.
C. 'd1' ERROR
: It happens when D-Sensor is OPEN or SHORT.
(1) LED DISPLAY: Shortly flickering(0.3sec.) 3 times.
(2) CONTROL: Return to next limit defrost time (30 min)
(3) RELEASE: When D-Sensor is working normally.
D. 'DR' / 'DF' ERROR
: It happens when the system senses R/F door opens more than 1 hour.
(1) LED DISPLAY: Shortly flickering(0.3sec.) 4 times / 5 times.
(2) CONTROL: Delete function relating to R/F door switch sensing
(3) RELEASE: When sensing close from R/F door S/W.
E. 'F3' ERROR
: It happens when Defrost Heater off after 60min.
(1) LED DISPLAY: Shortly flickering(0.3sec.) 6 times.
(2) CONTROL: Skip the step 'PRE-COOL' of Defrost Mode.
(3) RELEASE: Defrost Heater off by D-Sensor.
※
When pusing 'TEST KEY' on the main PCB,
LED is long(1.0sec.) flickering several times.
ex. 'Forced Defrost Mode:' long flickering 2 times
LED Lamp
CONTROL OBJECT INPUT
Sensor Error
2-9. Error Display
-
To Confirm Errors:
Check LED on the main PCB
- The Priorities of Error :
R1
→
RT
→
D1
→
DR
→
DF
→
F3
DR Switch 4times DR
D sensor 3times d1
RT sensor 2times RT
R sensor 1time R1
ERROR LED CODE
flicker
Defrost
6times
F3
DF
5times
DF Switch
RT sensor TEMP (unit:
℃
) ~13 ~21 ~30 ~40 ~43 43~ RT-S Error
COMP. Operating ON/OFF TIME
(unit: min.)
7/50 10/35 25/35 30/26 50/15 50/15 30/26
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