Arctiko CRYO 170, Руководство по эксплуатации, Страница: 30 / 40

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9. Main body display temperature is
lower than set temperature
(excessive cooling)
Faulty controller. Replace it.
10. Chart of a thermograph is not
transferred. No record on a chart.
Refer to the user manual of a manufacturer
11. An automatic cooling auxiliary
device (LN2) does not operate
even when the main body display
temperature rises.
1) Check if [AL-1] and [BACKUP SYSTEM] on the control panel
are ON. As the automatic cooling auxiliary device works with
an alarm device, it does not work if [AL-1] is off.
2) Check if a main body door is open. If a main body door is
open the door contact will prevent the LN2 to spray into the
unit.
12. An alarm buzzer sounds and an
alarm lamp is turned on
1) Increase of the inner temperature of a freezer
2) Fan motor anomaly backup
The anomaly of a radiating fan motor will be remedied under
the following conditions.
In case of the insufficient rotation or stop of a fan motor
during operation, an alarm buzzer sounds and AL-2 lamp
(control panel) is on. Cooling is maintained as an auxiliary
fan runs and the alarm buzzer sounds at the same time, but
the alarm buzzer will continue sounding (alarm hold circuit).
In case of stopping the buzzer, turn off the power switch.
Continue operation by turning on the power switch after the
alarm buzzer stops.
Request for fan motor repair after checking the alarm
buzzer and the AL-2 lamp ON.