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ROUTINE MAINTENANCE
WARNING
Always disconnect the power supply to the unit prior to any repair or maintenance of the unit in
order to prevent electric shock or injury.
Ensure you do not inhale or consume medication or aerosols from around the unit at the time of
maintenance. These may be harmful to your health.
Cleaning of cabinet
• Clean the unit once a month. Regular cleaning keeps the unit looking new.
• Use a dry cloth to wipe off small amounts of dirt on the outside and inside of the unit and all accessories.
If the outside panels are dirty, clean them with a diluted neutral dishwashing detergent. (Undiluted
detergent can damage the plastic components. For the dilution, refer to the instruction of the detergent.)
After the cleaning with the diluted detergent, always wipe it off with a wet cloth. Then wipe off the
cabinet or accessories with a dry cloth.
• Never pour water onto or into the unit. Doing so can damage the electric insulation and cause failure.
• The compressor and other mechanical parts are completely sealed. This unit requires absolutely no
lubrication.
• Check the back-up system by pressing test switch once a month if it is installed.
• Remove the frost or ice on the chamber wall and clean the condenser filter once a month.
Defrosting of inside wall
The frost is built at the upper portion of the chamber and inner door. The excessive frost possibly make
some gap between the cabinet and door gasket, which may cause poor cooling. Remove the frost on
the inner door with a scraper enclosed with the unit. Following shows the procedure for removing the
chamber frost.
Note: For removing the frost, do not use a tool with sharp edge such as a knife or a screw driver.
1. Turn off the back-up system if applicable.
2. Take out and transfer all the contents to another freezer or a container which is refrigerated by liquid
carbon dioxide or dry ice.
3. Turn off the power switch of the freezer.
4. Open the outer door and inner door. Remove the
inner door by lifting up as shown in the figure.
5. Leave the freezer as it is.
6. The water accumulated on the bottom of the
chamber should be wiped up with a dry cloth.
7. After cleaning the chamber and inner door, replace
the inner door and start up the unit according to the
procedure on page 14.
8. Put back the articles into the sufficiently cooled
freezer compartment.
9. Turn on the back-up system if it is provided.
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