Drawell MDF-40V50 Manuel de l'utilisateur - Page 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

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If the power switch is turned on

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If the power socket is in good condition

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If the fuse has been burned out

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If the controller is broken or line is damaged: it is necessary to contact the nearby maintenance

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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

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The storage capacity is too much: take some out or distribute evenly to keep the air inside the freezer

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flow

The condenser is dirty and the heat dissipation is not good: clean the condenser (operate according to

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relevant terms in Maintenance)

Refrigerant leeks or pipeline is blocked: it is necessary to contact the nearby maintenance department for

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overhaul

The condensate fan in the machine room is broken: it is necessary to contact the nearby maintenance

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department for overhaul

c.Large noise

If the outer packing has been all removed

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If the freezer is placed smoothly

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If the back part of the freezer body contacts with the wall: please operate according to relevant items in

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Precautions.

The compressor is in abnormal operation only with drone: if the power voltage is within the defined limits,

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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

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according to the above methods, please contact the maintenance department of our company in time.

XIV. Packing List

Model

MDF-40V50

User Manual

Key

Shelf

Buckle