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SELF-DIAGNOSTIC FUNCTIONS
This unit has the self-diagnostic functions listed below.
Contact our sales representative or agent if an error code (e.g. E03) is displayed resulting from the self-
diagnosis.
Self-diagnostic
Situation
Indication
Alarm buzzer
Remote alarm
Sensor
abnormality
If the defrost sensor is
disconnected.
Alarm indicator blinks.
E03 and chamber temp.
are displayed alternately.
Intermittent tone
Alarm mode
If the defrost sensor is
short-circuited.
Alarm indicator blinks.
E04 and chamber temp.
are displayed alternately.
If the compressor sensor is
disconnected.
Alarm indicator blinks.
E05 and chamber temp.
are displayed alternately.
If the compressor sensor is
short-circuited.
Alarm indicator blinks.
E06 and chamber temp.
are displayed alternately.
If the low-temp. alarm sensor is
disconnected.
Alarm indicator blinks.
E13 and chamber temp.
are displayed alternately.
If the low-temp. alarm sensor is
short-circuited.
Alarm indicator blinks.
E14 and chamber temp.
are displayed alternately.
If the upper sensor for temp.
display is disconnected.
Alarm indicator blinks.
E15 and chamber temp.
are displayed alternately.
If the upper sensor for temp.
display is short-circuited.
Alarm indicator blinks.
E16 and chamber temp.
are displayed alternately.
If the lower sensor for temp.
display is disconnected.
Alarm indicator blinks.
E17 and chamber temp.
are displayed alternately.
If the lower sensor for temp.
display is short-circuited.
Alarm indicator blinks.
E18 and chamber temp.
are displayed alternately.
Battery check
When about 3 years have passed
with the power switch on.
(time to replace the battery)
F-1 and chamber temp. are
displayed alternately.
----- -----
Fan motor check
When about 6 years have passed
with the power switch on.
(time to replace the fan motor)
F-2 and chamber temp. are
displayed alternately.
----- -----
The alarm mode of remote alarm terminal is cancelled by pressing the alarm buzzer stop key
(BUZZER) since the remote alarm terminal is operated in conjunction with alarm buzzer. However, the
alarm mode of remote alarm terminal will not be cancelled by pressing the alarm buzzer stop key
(BUZZER) when the unit is under power-failure alarm.
This unit is provided with an alarm buzzer recovery function. The alarm buzzer will restart after 30
minutes if the alarm mode continues even if the alarm buzzer was stopped by pressing the alarm buzzer
stop key (BUZZER).
The battery has a limited working life. Replace the battery every 3 years. Contact our sales
representative or agent for battery replacement.
The fan motor has a limited working life. Replace the fan motor every 6 years. Contact our sales
representative or agent for fan motor replacement.
