Daewoo FRS-U20IV, Service Manual

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2. Normal Defrost Mode
FUNCTIONS ( Defrost Mode )
PRECOOL
HEATER
DEFROTING
PAUSE
FAN DELAY
1) PRECOOL
- Compressor runs ( to cool down the freezer compartment prior to heater switch on )
for 50minutes or until Freezer sensor temperature reaches -27C
2) HEATER DEFROSTING
- Defrost heater is switch on until Defrost Sensor temperature reaches 13C.
- Heater operation time
; 30 seconds - Heater is ON free of Defrost Sensor.
; 30 minutes - When Defrost Sensor is malfunction. ( D1 error )
; 80 minutes - Heater maximum operation time. ( F3 error )
3) PAUSE
- After Defrost Heater switch OFF, Compressor dosen't run within 7 minutes.
4) FAN DELAY
- Freezer & Refrigerator fan switch on after 5miunuts' cmopressor running.
3. Forced Defrost Mode
1) How to start
( Basic Models Only )
; Press the REF. SET button 5 times while pushing the FRZ. SET button.
( Dispenser Models Only )
- Press the LOCK button.
- Press the Refrigerator Set button 5 times while pushing the Freezer Set button.
2) Except PRECOOL, steps are same as above 2. Normal Defrost Mode .
Normal Mode
PRECOOL
Defrsot Heater
Time
Division
Compressor
Freezer Fan
Refrigerator Fan
50min
ON
Off
OFF OFF
OFF OFF
OFF
ON
OFF OFF
OFF OFF ON
7min
OFF
PAUSE HEATER DEFROST FAN DELAY
Control
30min ( D1 error )
80min ( F3 error)
ON
5min
12