27
TROUBLESHOOTING
If the unit malfunctions, check out the following before calling for service.
Malfunction Check/Remedy
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.
The unit does not accept
any key operation
■ The key lock is “ON”.
The alarm is activated. < On start-up >
The temperature in the unit does not match set value.
< In use >
■ The door was kept opened for long time.
■ The set value was changed.
■ The containers of high temperature (load) were put in the unit.
In these cases, alarm is removed automatically by running the unit for
several hours.
The cooling is poor ■ The environmental temperature is too high.
■ The door is not shut tightly.
■ 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.
■ The condenser filter is clogged. (Always clean the condenser filter
when the filter check lamp blinks and buzzer sounds.)
The unit has condensation
on the surface
■ The freezer sometimes gets condensation under hot and humid
weather or depending on environment of installation site. This is
not malfunction. 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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