Sanyo MDF-594 - Troubleshooting Common Malfunctions

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TROUBLESHOOTING
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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 inner lid is not placed adequately. The 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 blinks.
￭ 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 freezer compartment.
Alarm test key cannot
actuate the alarm
￭ The alarm is activated only when the power 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 back-up system is
provided)
￭ The liquid carbon dioxide tank is empty.
￭ The valve of the carbon dioxide tank is not opened.
￭ The ambient temperature is too high. In this case, move the tank to
a cool location.
Inquire at liquid carbon dioxide 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 Sanyo sales representative or agent.