30
TROUBLESHOOTING
If the unit malfunctions, check out the following before calling for service.
Malfunction Check/Remedy
If nothing operates even
when switched on
■
The unit is not connected to the power supply.
■
There is a power failure.
■
The fuse is blown or the circuit breaker is activated.
An alarm system works
■
Investigate the following cause when an alarm lamp and buzzer sound
are working.
■
When use starts.
Is temperature of the freezer chamber the value?
■
When it is using.
Were not you taking the condition that opened the change of the
temperature command and a door for a long time?
Did not you put the sample whose temperature was high in the freezer
chamber?
An alarm is canceled naturally when it is left in these cases.
The cooling is poor
■
The environmental temperature is too high.
■
The door is not shut tightly.
■
The inner lid is not installed correctly.
■
The set temperature is not set properly.
■
The grille is blocked out.
■
The filter is clogged.
■
The freezer is in the direct sunlight.
■
There is any heating source near the freezer.
■
A rubber cap and insulation for the access port are not set
correctly.
■
You put too many unfrozen articles into the freezer compartment.
There is condensation
outside the freezer
■
The condensation can be found outside the freezer depending on the
installation site, or under muggy environment. The condensation is
caused by the humidity not by freezer failure.
Wipe off the condensation with a dry cloth.
Note:
If the malfunction is not eliminated after checking the above items, or the malfunction is not shown in the
above table, contact our sales representative or agent.
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