Helmer Scientific Horizon HLF105, Руководство по обслуживанию

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360142-D/D 85
Horizon Series™ Models
15.4 Condensation and Icing Problems
Problem Possible Cause Action
There is excessive
water in the water
evaporation tray
inside the lower
compartment in the
back of the unit.
Humid air is entering
the chamber
► Confirm the freezer is level, and the door is
aligned, closing tightly, and sealing correctly.
Correct issues as necessary.
There is excessive ice
in the chamber.
Humid air is entering
the chamber.
► Confirm the freezer is level, and the door is
aligned, closing tightly, and sealing correctly.
Correct issues as necessary.
Unit cooler drain
line is damaged or
restricted.
► Confirm the unit cooler drain line is free of debris
and is not restricted. Remove debris if necessary.
Drain line is plugged. ► Confirm the drain tube is free of debris. Remove
debris if necessary.
External drain fan is
faulty.
► Confirm the external drain fan is running. Hold a
piece of paper in front of the fan and confirm that
the paper is being drawn toward the freezer.
► Confirm the connections are secure. Tighten
connections if necessary.
► Replace the drain line fan if necessary.
There is excessive
moisture on the doors.
Humid air is entering
the chamber.
► Confirm the freezer is level, and the door is
aligned, closing tightly, and sealing correctly.
Relative humidity
around freezer is too
high.
► Confirm freezer location meets requirements.
After a defrost cycle,
no water flows into
the water evaporation
tray.
Not enough time has
elapsed since the end
of the defrost cycle.
► Allow approximately 20 minutes after the end
of the defrost cycle to check for water in the
evaporation tray.
Drain line is plugged. ► Confirm the drain tube is free of debris. Remove
debris if necessary.
Drain line heater is
faulty.
► Confirm the drain line heater is warm to the touch.
Contact Helmer Technical Service to resolve
issues as necessary.
Defrost heater on the
evaporator in the unit
cooler is not working.
► Check for ice buildup on the evaporator by looking
through the fan grill with a flashlight. If there is
significant ice buildup inside or behind the unit
cooler, initiate a defrost cycle of the freezer.