Defrost Mode - DAEWOO ELECTRONICS RN-341N Service Manual

2-3. Defrost Mode

INPUT
- Accumulated Compressor Run Time
- Running Time Ratio of Compressor
- Accumulated Door Open Time
- Ambient temperature (RT)
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
- or, ambient temperature (RT) is more than 38℃
(2) Even if the above condition is not satisfied,
defrost mode starts immediately when accumulated compressor run time is 14hrs.
B. Normal Defrost Mode
• Comp ON, Fan On, Heater OFF
• Comp runs for 25min. before defrost mode
'PRE-COOL'
• Comp OFF, Fan OFF, Heater ON
• Heater off when 'D-Sensor' is over 10℃.
• Heater off after 60min. at normal control.
Defrost
• Heater off after 40min. in case D1 error.
Heater on
• Comp OFF, Fan OFF, Heater OFF
• 10minutes.
Pause
Normal
Operation
C. Forced Defrost Mode
- How to start:
by press "TEMP" button for continuously and "S-COOL" button 5 times.
- 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 13℃. (for TEST)
- How to confirm:
1) buzzer sound 3times and all LED on for 3 sec., when Forced Defrost Mode start.
2) LED "3", "S-COOL" on and "4", "5" flickering by pushing "S-COOL" button for continuously
and "TEMP" button 5 times after Forced Defrost Mode start.
CONTROL OBJECT
- Compressor
- F Fan
- Defrost Heater
11
2. FUNCTIONS