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CHAPTER 4. DEFROST, UNUSED, MAINTENANCE:-
4.1 Defrost:-
4.2 Maintenance:-
CHAPTER 5. SERVICE AFTER SALE:-
Problem Possible Cause
If there is some frost on the surface of chamber for a long time then it will decrease the performance of
freezer. So if the thickness of frost is more than 10mm then some defrost operations are recommended.
After the freezer working for 192hours, system will get automatic defrost.
Do not keep heavy goods in the freezer so as to prevent the body.
Should clean the freezer at regular intervals. (For safety purpose, please draw out the power pin first).
Use soft and warm cloth to clean the freezer inner and outer surface.
Please use the scour to wipe and then clean with soft cloth.
Once the freezer starts working it is best to use it continuously.
DO NOT sprinkle water on the faces of cabinets, which may decrease insulating property of electric
parts and rust metal parts.
DO NOT use hot water, corrosive cleanser and organic solvent!
Note: Prohibit the children for playing games around the freezer.
Some unexpected failures may arise during running. Please pay attention to the running status of your LF-300C
freezer. If any exceptional case arises, please check and solve it according to the following introductions. If the
problem is not solved well, please contact our service center for details.
ULT freezer does not operate Power outage has occurred.
The plug is bad or not securely plugged-in.
Fuse is blown.
Voltage is too low or too high.
Compressor does not work Power in control panel is off.
Temperature setting is wrong.
Temperature is higher than setting Frost in inner wall is too thick
The door is not closed properly or is opened too frequently.
Overfull materials are put into chamber.
Ambient temperature is too high.
Too great noise Freezer is not leveled well.
Freezer leans upon the wall.
