ROUTINE MAINTENANCE
Defrosting of inside wall
Defrost the inside wall of the freezer as follows:
Normal defrosting
Remove the frost by the enclosed scraper.
Thorough defrosting
1. Take out and transfer all the contents to another freezer or container which contains liquid N
2
, or dry
ice. Switch off the remote alarm and back-up system. Switch off the power supply.
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. Put back the articles
into the sufficiently cooled freezer compartment.
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