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.
