Phcbi MDF-DU300H, Руководство по эксплуатации

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TROUBLESHOOTING
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 cooling is poor
□ The large amount of articles (load) is stored in the chamber at one
time.
□ The ambient temperature is too high.
□ The inner door latch is not closed completely. The outer door is
not closed firmly.
(The frost or ice between the cabinet and magnetic door gasket
possibly prevents door seal.)
□ The air intake vent is blocked.
□ The condenser filter is clogged. Always clean the condenser filter
when the filter check lamp lights.
□ 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.
Alarm test key cannot
actuate the alarm
□ The battery switch is not ON.
□ When only the alarm buzzer or only the alarm lamp 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
installed)
□ The liquefied CO
2
cylinder is empty.
□ The valve of liquefied 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 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 our sales representative or agent.