20
TROUBLESHOOTING
If the unit malfunctions, check out the following before calling for service.
Malfunction Check/Remedy
The chamber is not cooled
at all
￭ The voltage is too low. (In this case, call an electrician.)
￭ The breaker is free.
￭ The fuse is blown.
Sometimes the freezer is not cooled at all for about 5 minutes after
starting-up.
The cooling is poor
￭ The ambient temperature is too high.
￭ The door is not shut tightly.
￭ The inner lid is not installed correctly.
￭ The set temperature in the controller is not set properly.
￭ The grille is blocked out.
￭ The filter is clogged. Clean the filter when the filter check lamp
lights.
￭ 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.
￭ Too much frost is accumulated in the chamber.
Alarm test key cannot
actuate the alarm
￭ The alarm test key does not function when the power switch of
the freezer is off.
￭ 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.
￭ It is the immediately after starting of refrigeration.
The freezer causes larger noise when the chamber temperature is
high because of large load. The noise gets smaller along with
chamber temperature.
Back-up test switch does
not operate normally (when
the back-up system is
provided) (AT type)
￭ 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
liquid CO
2
cylinder to a cool location.
Inquire at liquid CO
2
suppliers about cylinder 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 Sanyo sales representative or agent.
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