41
ALARMS & SAFETY FUNCTIONS
Table 15. Alarms & safety function list
Alarm & safety
Situation
Indication
Buzzer
Safety operation
Sensor abnormality
If the thermal sensor is disconnected.
Message column:
“Error E01: Temp Sensor
Open.”
Intermittent tone
Remote alarm.
Unit is continuous
running.
If the thermal sensor is short-circuited.
Message column:
“Error E02: Temp Sensor
Short.”
If the condenser sensor is
disconnected.
Message column:
“Error E03: Condenser
Sensor “A” Open.”
Intermittent tone
Remote alarm.
If the condenser sensor is short
circuited.
Message column:
“Error E04: Condenser
Sensor “A” Short.”
If the condenser sensor is
disconnected.
Message column:
“Error E05: Condenser
Sensor “B” Open.”
Intermittent tone
Remote alarm.
If the condenser sensor is
short-circuited.
Message column:
“Error E06: Condenser
Sensor “B” Short.”
If the ambient temperature sensor is
disconnected.
Message column:
“Error E07: Ambient Temp.
Sensor Open.”
Intermittent tone
Remote alarm.
If the ambient temperature sensor is
short-circuited.
Message column:
“Error E08: Ambient Temp.
Sensor Short.”
Battery switch check
When the battery switch is OFF during
alarm test.
Message column:
“Error E09: Battery switch
is off.”
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Condenser temp.
abnormality
In the event of failure of fan motor for
cooling the compressor.
Message column:
“Error E10: Condenser
Temp. is abnormal.”
Intermittent tone
Remote alarm.
All compressor are stops.
Fan motor
abnormality
If the fan motor “A” is stopped.
Message column:
“Error E16: Fan motor “A”
abnormal.”
Intermittent tone
Remote alarm.
Fan motor “B” is
continuous running.
If the fan motor “B” is stopped.
Message column:
“Error E17: Fan motor “B”
abnormal.”
Intermittent tone
Remote alarm.
Fan motor “A” is
continuous running.
Cooling circuit
abnormality
If the cooling circuit “A” broke down.
Message column:
“Error E18: Cooling circuit
“A” abnormal.”
Intermittent tone
Remote alarm.
If the cooling circuit “B” broke down.
Message column:
“Error E19: Cooling circuit
“B” abnormal.”
Intermittent tone
Remote alarm.
Note:
• When the operation is started in high ambient temperature, the alarm lamp (ALARM) sometimes flashes,
and then the message (Please check a condenser filter) of the filter alarm is indicated on it in top screen.
In this case, the alarm lamp is off automatically when the chamber temperature is getting lower.
• The freezer resumes the operation after power failure with the temperature setting before power failure
as the chamber temperature setting and alarm temperature setting are memorized in the nonvolatile
memory.
• The chamber temperature is displayed for five seconds by pressing buzzer stop key (BUZZER) during
power failure alarm. Then the buzzer is silenced. The alarm lamp keeps flashing.
• Fan motors are expendable supplies. Replace them about every 6 years. Contact our sales
representative or agent at the time of replacement of the fan motors.
