Drawell MDF-40V50 Manuale d'uso - Pagina 16

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XIII. General fault analysis and removal
a.The ultra low temperature freezer does not work and there is no display on the controller
If the power plug wire is properly connected and the main power supply is plugged in
If the power switch is turned on
If the power socket is in good condition
If the fuse has been burned out
If the controller is broken or line is damaged: it is necessary to contact the nearby maintenance
department for overhaul
b.The compressor is running without stop, but the temperature inside the freezer does not decrease
The door is opened too often for too long: try to reduce the door-opening time
The storage capacity is too much: take some out or distribute evenly to keep the air inside the freezer
flow
The condenser is dirty and the heat dissipation is not good: clean the condenser (operate according to
relevant terms in Maintenance)
Refrigerant leeks or pipeline is blocked: it is necessary to contact the nearby maintenance department for
overhaul
The condensate fan in the machine room is broken: it is necessary to contact the nearby maintenance
department for overhaul
c.Large noise
If the outer packing has been all removed
If the freezer is placed smoothly
If the back part of the freezer body contacts with the wall: please operate according to relevant items in
Precautions.
The compressor is in abnormal operation only with drone: if the power voltage is within the defined limits,
and please operate according to relevant terms in Precautions.
The fan in the machine room makes a lot of noise: the fan is broken or contacts with something. It is
necessary to contact nearby maintenance department for overhaul
Notes: if the ultra low temperature freezer still cannot work normally after being inspected and handled
according to the above methods, please contact the maintenance department of our company in time.
XIV. Packing List
Model
MDF-40V50
User Manual
1
Key
2
14
Shelf
Buckle
1
4