23
ALARMS & SAFETY FUNCTIONS
Alarm & Safety
Situation
Indication
Buzzer
Safety operation
Key lock
When the key lock is ON.
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Change of setting
is disable.
Thermal sensor
abnormality
If the thermal sensor goes
open circuit.
Alarm lamp is flashed.
E01 and chamber temp.
are displayed alternately.
Intermittent tone
Remote alarm.
Continuous running of
compressor.
If the thermal sensor goes
short circuit.
Alarm lamp is flashed.
E02 and chamber temp.
are displayed alternately.
Intermittent tone
Remote alarm.
Continuous running of
compressor.
Defrost sensor
abnormality
If the defrost sensor goes
open circuit.
Alarm lamp is flashed.
E03 and chamber temp.
are displayed alternately.
Intermittent tone
Remote alarm.
If the defrost sensor goes
short circuit.
Alarm lamp is flashed.
E04 and chamber temp.
are displayed alternately.
Intermittent tone
Remote alarm.
Filter sensor
abnormality
If the filter sensor goes open
circuit.
Alarm lamp is flashed.
E05 and chamber temp.
are displayed alternately.
Intermittent tone
Remote alarm.
If the filter sensor goes
short circuit.
Alarm lamp is flashed.
E06 and chamber temp.
are displayed alternately.
Intermittent tone
Remote alarm.
Ambient
temperature
sensor
abnormality
If the ambient temperature sensor goes
open circuit.
Alarm lamp is flashed.
E07 and chamber temp.
are displayed alternately.
Intermittent tone
Remote alarm.
If the ambient temperature sensor goes
short circuit.
Alarm lamp is flashed.
E08 and chamber temp.
are displayed alternately.
Intermittent tone
Remote alarm.
Battery switch
check
When the battery switch is OFF during
alarm test.
Alarm lamp is flashed.
E09 is flashed.
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Condenser temp.
abnormality
In the event of failure of fan motor for
cooling the compressor
When the ambient temperature exceeds
the usable environmental condition, etc.
E10 and chamber temp.
are displayed alternately.
Intermittent tone
Remote alarm.
Compressor stops.
cascade sensor
abnormality
If the cascade sensor goes
open circuit.
Alarm lamp is flashed.
E11 and chamber temp.
are
displayed alternately.
Intermittent tone
Remote alarm.
If the cascade sensor goes
short circuited.
Alarm lamp is flashed.
E12 and chamber temp.
are
displayed alternately.
Intermittent tone
Remote alarm.
Battery check
When about 3 years has passed with
power switch ON.
F1 and chamber temp.
are displayed alternately.
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Fan motor check
When about 6 years has passed with
power switch ON.
F2 and chamber temp.
are displayed alternately.
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Note:
• When the operation is started in high ambient temperature, the filter check lamp is sometimes flashed.
In this case, the 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 5 seconds by pressing buzzer stop key (BUZZER) during
power failure alarm. Then the buzzer is silenced. The alarm lamp keeps flashing.
