22
TROUBLE SHOOTING
If the unit malfunctions, check out the following before calling for service.
Malfunction Check/Remedy
The chamber is not cooled
at all
The circuit breaker of power source is active.
The voltage is too low. In this case, call an electrician.
The power switch is not ON.
The large amount of articles (load) is stored in the chamber at
one time.
The cooling is poor
The ambient temperature is too high.
The door latch of inner door is not closed completely. The outer
door is not closed firmly.
(The frost or ice between the cabinet and door gasket possibly
prevents door seal.)
The air intake vent is blocked.
The condenser filter is clogged. Always clean the filter when the
filter check lamp is lit.
The set temperature is not inputted properly.
The freezer is not away from 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 chamber.
Alarm test key cannot
actuate the alarm
The alarm is activated only when the battery switch is ON.
When only the buzzer or only the alarm is actuated by the alarm
test key, the unactuated part is out of order, and must be replaced.
Noise
The freezer is not installed on the sturdy floor.
There is anything touching the frame.
The freezer is not leveled with the leveling feet.
The freezer is in the status immediately after start up.
The unit sometimes causes a noise when the chamber temperature
is high due to the large load. The noise gets less and less
accompanying with the cooling of the chamber.
Back-up test switch does
not operate normally (when
the backup cooling kit is
provided)
The liquid CO
2
cylinder is empty.
The valve of the liquid CO
2
cylinder is not opened.
The ambient temperature is too high. In this case, move the
tank to a cool location.
Inquire at liquid CO
2
suppliers about its check, adjustment,
installation, or move.
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.
