2-12. Ringing of compulsory operation, compulsory frost removal buzzer
1. If pressing the test button in the Main PCB, a beep will sound.
2. In selecting compulsory operation, alarm sound is repeated and completed in the cycle of On for 2/10 second and Off for
1 8/10 second three times.
3. In selecting compulsory frost removal, alarm sound is repeated and completed in the cycle of On for 2/10 second , Off for
2/10 second, On for 2/10 second and Off for 1 4/10 second three times.
2-13. Defrost function
1. Defrost is performed whenever total operation time of compressor becomes 7 ~ 7 1/2 hour.
2. In providing initial power (or returning power failure), frost removal starts whenever total operation time of compressor
becomes 4 ~ 4 1/2 hour.
3. Defrost is completed if temperature of a defrost sensor becomes more than 5°C after starting defrost. The defrost cycle
will fail if there frigerator does not reach a temperature of 5°C (9 °F)two hours into the defrost cycle.
4. The defrost cycle will not operate of the defrost sensor fails, arcs, or shorts out.
2-14. Refrigerator lamp automatically off
• Refrigerator lamp turns on and off by refrigerator door switch.
• If refrigerator lamp continuously turns on more than 7 minutes, the refrigerator room lamp turns off automatically period.
MICOM FUNCTION
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