DONGBU DAEWOO ELECTRONICS BALLISTA2, Service Manual

Page: 18 / 49

2. FUNCTIONS
- Compressor
- F Fan
- Defrost Heater
A. Defrost Mode Operation conditon
(1) In case accumulated compressor run times: 6, 8, 10, 12 hours,
- when there occur any errors:
R1, D1, C1, RT, Door SW error etc. (Check "2-9. ERROR DISPLAY")
- or, running rate of COMP (per 2hrs of accumulated operation time) is more than 90%
- or, accumulated door open time is over 2 minutes
(2) Even if the above condition is not satisfied,
- defrost mode starts immediately when accumulated compressor run time is 14hrs.
- total compressor running time ( on time + off time ) is 72hours.
B. Normal Defrost Mode
C. Forced Defrost Mode
- How to start:
(1) by press Door S/W for continuously and Control 'Dial Knob'(MIN -> MAX) 1 times.
(2) or, by press 'Test Key' 3 times on Main PCB
- If appliance has any error, Forces Defrost Mode don't start.
- Process: same as Normal Defrost Mode except 'PRE-COOL'
※
Heater is supposed to be on Initial 30sec. even though the temp. at “D SENSOR” is
over 10
℃
. (for TEST)
- How to confirm: If Force Defrost Mode start, you can buzzer sound
CONTROL OBJECT INPUT
- Accumulated Compressor Run Time
- Running Time Ratio of Compressor
- Accumulated Door Open Time
2-3. Defrost Mode
17