LABEC DW-FL270 - Manual (Page 6)

When sensor plough,LED glittering and show “E1” ，Alarm with buzzer.；
When sensor short curcuit, LED glittering and show “E2” ，Alarm with buzzer.
Exceed temperature range alarm ：
When sensor temperature more than+99℃ or less than -50℃ ，Will show“HH”or“LL”。
Press "Mute" more than 2seconds,Temperature control system close.
4 Defrosting and Maintenance
4.1 Defrosting
There will be some frost build up on the surfaces of chamber after a long time running which
may decrease the performance of freezer. If the thickness of frost is more than 10mm thick,
defrosting operations are recommended.
4.2 Maintenance
External Casing: The cabinet is finished with painted epoxy. To maintain appearance the unit
should be wiped over with a non abrasive household cleanser and cloth.
Internal Chamber: The chamber and door liner are manufactured from formed plastic. These
surfaces may be cleaned with a gentle household cleanser and cloth or sponge.
The shelves are manufactures from plastic coated steel and a non abrasive cleanser should
be used.
The magnetic door gasket should be cleaned with a mild detergent ensuring it is dried
completely after washing. If there are stains on the gasket, these can be spot cleaned with a
household cream cleanser. Wipe away any residue/cleanser.
Unit should be cleaned and ventilation outlets and compressor intakes checked for any
obstructions on a regular basis.
4.3 Six Monthly Checks
Refrigeration System Checks:
Defrost unit and clean internal surfaces.
Remove roughing filter from in front of condenser unit. Clean in warm soapy water. Allow filter
to dry naturally. When dry re-install.
Carefully vacuum dust from condenser.
Check operation of condenser fan.
Check compressor unit/s for excessive noise and or vibration.
Electrical Maintenance (by qualified Electrician):
All electrical terminations/connections should be checked for tightness.
Motor currents should measured and documented.
If a fan motor is fitted the fan motor is pre-lubricated with sealed bearings which should not
require maintenance for some time depending upon extent of usage.