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Troubleshooting - ULT DW-86L288 User Manual

Freezer

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In the process of using the unit, you should pay attention to how the unit operates.
Should there be changes of the materials stored in the unit, follow the guidelines
below to attempt to correct the situation. If the conditions do not improve, please
notify Haier's local service center for repair. This will reduce your loss of properties.
Trouble shooting
Check the power source to make sure it is 220 V. Also
The unit does not operate.
check the main power switch to see if it is turned on.
Inspect the temperature set point to see if it is set up
properly.
The unit might be too close to a heat source.
The unit might be too close to a wall.
The air condenser might be clogged with dirt. You may
clean it with a brush.
Large amount of products have been loaded into the unit
in the last few hours. Consider raising the temperature
setting so that the unit will cycle normally then lower the
set point gradually.
Space the products so that there is ventilation in between
There is ice build-up on the
them.
interior wall and near the inner
doors.
The unit's door is not closed properly.
Do not open the door unless it is necessary.
The unit is not placed on a flat surface.
The noise is usually from the compressors.
expected that ULT's operate with more noise than a
household unit.
The banging noise might come from the metal
refrigeration parts contracting. It is suggested that the
temperature be reduced gradually.
The Haier ULT is equipped with a microcomputer control, and a
digital temperature display in a range of -10
operating temperature range is -40
The unit has a number of standard protection functions.
include compressor delay protection, low voltage booster, and high
voltage protection.
The refrigeration system for the unit features a well-balanced
cascade technology powered with imported low-temperature rated
specialty compressors.
Advanced LED display on the freezer can display the cabinet
temperature, set point, ambient temperature, and line voltage. It
also allows the user to set the high temperature alarm, low
temperature, and notifies the users through display should the unit
develop a failure.
Innovative and integrated design for the door lock and handle
provide convenient application.
Haier ULTs are suitable for applications in research and practice
institutions such as hospitals, epidemic prevention stations, and
many others.
It is
The technical data published in this manual are nominal. The actual
unit's performance may vary to a small extent due to a number of
factors.
to -86
. The normal
to -86
.
They

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This manual is also suitable for:

Dw-86l628Dw-86l388Dw-86w420