UBC MUZA, Operating Manual

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MUZA
14. COMMON PROBLEMS AND REMEDIES
A list of common problems with the refrigerated display cabinets and their remedies is given in Table 4.
Table 4
–
List of common problems with the refrigerated display cabinets and their remedies
Description of the problem Probable cause Remedy
The refrigerated display cabinets does
not turn on
The supply voltage is absent in the
mains Ensure the required voltage for operat-
ing the refrigerated display cabinets in
the mains socket
The plug has no contact with the
mains Ensure contact with the mains
Circuit-breaker actuation Repeat the procedure of turning on in a
relevant order. If the circuit-breaker trips
out during the procedure, the refrigerated
display cabinets is faulty. Contact your
service provider.
The lamp inside the refrigerated dis-
play cabinets does not shine Faulty lamp Replace the lamp
Faulty power unit Replace the power unit
Damaged wiring Replace the damaged wire
Increased level of noise Incorrect installation of the refriger-
ated display cabinets Install the refrigerated display cabinets
according to the requirements of this
manual
Damaged shell parts Replace the damaged part
The refrigerated display cabinets turns
on, the compressor is working, no
cooling in the useful volume of the
chamber Refrigerant leak
Submit a repair action form to the ser-
vice provider
Faulty compressor valves
Appearance of a characteristic odor Dirty refrigerated display cabinets Thoroughly clean (wash and air out)
the refrigerated display cabinets from
product residues and dirt
The product gets frozen inside the re-
frigerated display cabinets Incorrect thermostat settings Increase the cooling mode deactuation
temperature on the controller
Incorrect compressor operation Call upon the service provider's tech-
nician
The compressor does not work, the
condenser fan is working The starting relay is out of order Call upon the service provider's tech-
nician
The compressor is out of order
The compressor and condenser fan do
not work The thermostat does not work Turn off the refrigerated display cabi-
nets. Call upon the service provider's
technician for repair work
Damaged power cable of the modular
unit
Formation of a large amount of mois-
ture on the glass Extremely humid ambient air Ensure operating conditions as per
clause 6
The temperature in the volume of the
refrigerated display cabinets is too low Increase the cooling mode deactuation
temperature on the controller
The door does not close
Damaged door closing mechanism Call upon the service provider's tech-
nician
Sagging door