8. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM
- 26 -
1
2
3
4
5
WARMER
COLDER
TEMPERATURE
ADJUST
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
ORDER
REMARKS
INITIAL
POWER ON
Temperature of defrost
sensor is 113 °F (45°C)
or more .
Temperature of defrost
sensor is lower than
113 °F (45°C)
POWER
ON
COMP,
F-FAN
ON
0.5
Se
c
POWER
ON
Def-
Heater
ON
Def-
Heater
OFF
0.5
Sec
10 Sec
0.5 Sec
COMP,
F-FAN
ON
OPERATING
ORDER
REMARKS
INITIAL
POWER ON
Temperature of defrost
sensor is 113 °F (45°C)
or
Temperature of defrost
sensor is lower than
113 °F (45°C .
POWER
ON
COMP,
F-FAN
ON
0.5
Se
c
POWER
ON
Def-
Heater
ON
Def-
Heater
OFF
0.5
Sec
10 Sec
0.5 Sec
COMP,
F-FAN
ON
