Subject to technical changes | Valid from July 2021
54
OPERATION AND USE
REFRIGERATED DISPLAY CASES
03
Fault
Possible cause
Remedy
Condensation on the glass.
Too low temperature in the unit.
Display target value:
Press the SET button, units without insulating
glass ≥ 4 to 5 °C (see Chapter 3.2).
Too high ambient temperature/
too high air humidity.
+25 °C ambient temperature and 60% relative
humidity should not be exceeded. If possible,
switch on the air-conditioner.
Neighbouring units give off heat.
Review the installation situation. If necessary,
contact an authorised service specialist /
support.
Fan speed too high.
Contact authorised service specialist / support.
3.4.
FAULTS AND CAUSES
Check the points listed below, or contact your supplier or specialist dealer if this does not resolve the problem.
Fault
Possible cause
Remedy
The unit does not work.
Power supply disconnected.
Fit of the earthing contact plug (for power
outlet and controller).
No power to the socket.
Check whether the fuses are intact.
Electronics set incorrectly or display
dark.
Contact authorised service specialist /
support.
Fault
Possible cause
Remedy
The products do not reach
the desired temperature.
One or more doors are open.
Close doors, check temperature after 30
minutes.
The ventilation slits in the unit are
covered or blocked by products.
Ventilation slits (see Chapter 3.3).
Evaporator tray inserted incorrectly.
Insert the evaporator tray with the opening
facing upwards as described in chapter
4.1.3.
Air circulation inadequate.
Ensure air circulation as shown in Chapter
2.7. If necessary, contact an authorised
service specialist / support.
Temperature on the display differs
from the measured temperature.
Contact authorised service specialist / sup
-
port (sensor calibration necessary (chapter
3.2.3).
Too much or too warm food.
Pre-cool the products (see Chapter 1.8),
uncover the air openings (see Chapter
2.7).
The target temperature is too high.
Set the target temperature value (see
Chapter 3.2.2).
The ambient temperature in the
room is too high (more than 25 °C).
Adjust the room air-conditioning (see
Chapter 1.8).
A draught from the outside is inter
-
fering with the circulation of the cold
air (mainly with open units).
Choose installation location without a
strong draught; follow requirements stated
in Chapter 1.8.
Condenser fouled.
Clean the condenser (see Chapter 4.1.5).
Evaporator heavily iced.
Initiate manual defrosting (see Chapter
2.8) or switch the unit off for several
hours.
Check
: visual inspection of whether
evaporator is free of ice. Otherwise repeat
defrosting.
Refrigeration unit refrigeration com
-
ponents malfunction, refrigeration
circuit defective
Contact authorised service specialist /
support.
If malfunctions occur, switch off the unit and contact your supplier or the manufacturer immediately.
NOTE
Содержание AKV 116
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