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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 key (TEST) once a month if it is installed.
• Remove the frost or ice on the chamber wall and clean the condenser filter once a month.
Cleaning of condenser filter
The unit is provided with the filter check lamp. This lamp
lights and buzzer sounds when the condenser filter is
clogged.
Clean the condenser filter according to the
following procedure. As a clogged condenser filter may
cause poor cooling and compressor trouble, clean it once
a month. The condenser filter fitted to the grille can be
removed as shown in the figure.
1. Open the grille in the front.
2. Remove the condenser filter installed inside the grille,
wash it with water and dry it naturally.
3. Replace the clean condenser filter as before.
4. Replace the grille and check that the condenser filter
check lamp is off.
Defrosting of inside wall
Defrost the inside wall of the freezer as follows:
Normal defrosting
Remove the frost by the enclosed scraper. Take care not to damage the inside wall.
Thorough defrosting
1. Take out and transfer all the contents to another freezer or container which contains liquid CO
N
, or dry ice. Switch off the CO
2
switch and battery switch.
2. Open the door and remove the inner lid. Leave the freezer as it is. The water remaining in the
freezer compartment should be wiped up.
3. After cleaning is completed, restart the operation according to the procedure on page 13. Put back
the articles into the sufficiently cooled freezer compartment.
back-up switch (CO
BACK UP) of AT type. Turn off the power
2
2
19
, liquid
2
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