Daewoo FR-650NT Series, Service Manual

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7-3. Defrost Mode
●
Initial Defrost
INPUT CONTROL OBJECT
●
Total COMP Work Time
●
COMP Working Rate
●
Total Door Open Time
●
RT
●
Defrost Mode
A. In providing initial power or returning power failure,
if the temperature at the D sensor is under 3 5 ° C Defrost Mode starts (It proceeds from “PRE COOL” )
●
Flow Chart of
Defrost Start
Start
COMP time ≥ 2hrs
NO
if the temperature at the D-sensor is under 3.5 C, Defrost Mode starts. (It proceeds from PRE-COOL .)
[ “PRE-COOL” → Heater on → Pause(10 min) → General operation ]
B. Initial defrost mode starts after “Prevention of Compressor Restart”. (Refer to Function No. 5)
Total time ≥ 60hrs
COMP time ≥ 14hrs
COMP time ≥ 2hrs
YES
YES
YES
NO
COMP time ≥ 6hrs
COMP Rate ≥ 80%
YES
N0
N0
N0
NO
Any error?
Total door open time
RT Temp ≥ 40 ° C
YES
YES
YES
NO
N0
Total door open time
≥ 3 min?
END
Defrosting start
NO
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