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Description Of Function & Circuit Of Micom; Function; Defrost Cycle - Kenmore 795.69292.902 Service Manual

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8. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM

8-1 FUNCTION

8-1-1 Function
1. When the appliance is plugged in, is set to "3" for the refrigerator. You can adjust the Refrigerator control temperature by
pressing the ADJUST button.
2. When the power is initially applied or restored after a power failure, it is automatically reset to "3".

8-1-2 Defrost Cycle

Defrosting starts each time the accumulated COMPRESSOR running time is between 7 and 50 hours. This time is
determinate by how long the doors are opened.
For initial power on or for restoring power, defrosting starts when the compressor running time reaches 4 hours.
Defrosting stops if the sensor temperature reaches 50 °F (10 °C) or more. If the sensor doesn't reach the 50 °F (10°C) in 1
hour, the defrost mode is malfunctioning. (Refer to the defect diagnosis function).
Defrosting won't function if the sensor if defective (wires are cut or short circuited)
8-1-3 Electrical Parts Operation in Sequence.
Electrical parts such as COMP, defrost heater, freezer FAN, etc. Operate in the following order to prevent noise and parts
damage. Several parts are started at the same time at initial power on and are turned off together when TEST is completed.
OPERATING
OPERATING
Temperature of defrost
Temperature of defrost
sensor is 113 °F (45°C)
sensor is 113 °F (45°C)
or
or more .
Temperature of defrost
Temperature of defrost
sensor is lower than
sensor is lower than
113 °F (45°C .
113 °F (45°C)
1
2
WARMER
TEMPERATURE
ADJUST
ORDER
ORDER
0.5
0.5
POWER
POWER
Se
Se
ON
ON
c
c
0.5
0.5
Def-
Def-
POWER
POWER
Sec
Sec
Heater
Heater
ON
ON
ON
ON
COMP,
COMP,
0.5 Sec
0.5 Sec
F-FAN
F-FAN
ON
ON
- 26 -
3
4
5
COLDER
COMP,
COMP,
F-FAN
F-FAN
ON
ON
Def-
Def-
Heater
Heater
10 Sec
10 Sec
OFF
OFF
REMARKS
REMARKS

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