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SELF-DIAGNOSTIC FUNCTIONS
Alarms involving an error code indicated on the temperature display are generated by the unit’s
self-diagnostic function.
If any of the error codes are displayed, contact our sales representative or agent without delay, report the
error code, and request repairs.
Self-diagnostic Cause Indication Buzzer Remote alarm
Sensor
abnormality
The thermal sensor is
disconnected.
The alarm indicator blinks.
E01 and chamber temperature
are displayed alternately.
Intermittent
tone
Alarm mode
The thermal sensor is
short-circuited.
The alarm indicator blinks.
E02 and chamber temperature
are displayed alternately.
The compressor sensor is
disconnected.
The alarm indicator blinks.
E05 and chamber temperature
are displayed alternately.
The compressor sensor is
short-circuited.
The alarm indicator blinks.
E06 and chamber temperature
are displayed alternately.
The ambient temp. sensor is
disconnected.
The alarm indicator blinks.
E11 and chamber temperature
are displayed alternately.
The ambient temp. sensor is
short-circuited.
The alarm indicator blinks.
E12 and chamber temperature
are displayed alternately.
Compressor
temperature
abnormality
The fan motor for cooling the
compressor is faulty.
The ambient temperature
exceeds the usable
environmental condition, etc.
The alarm indicator blinks.
E10 and chamber temperature
are displayed alternately.
Intermittent
tone
Alarm mode
Battery check
When about 3 years have
passed with the power switch
on (time to replace the
battery)
The battery indicator lights up. ----- -----
Contact our sales representative or agent to replace the battery for the power-failure alarm when the
battery indicator lights up.
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