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7. TROUBLESHOOTING
Problem: Display shows -.-
Solution: The operating button has not been pressed for long enough. This must be
pressed for at least the duration of one measurement, i.e. for at least 1.5
seconds.
Problem: Display shows Err 1
Solution: The ambient temperature is outside the permitted range
Problem: Display shows 1
Solution: The measured value is outside the permitted range.
Problem: Battery symbol illuminates
Solution: The batteries are dead.
NOTE: For problems not solved, please contact La Crosse Technology.
Maintenance
1. Changing the batteries
If the battery symbol appears in the display, the batteries must be changed. The
four button cells are accessible after opening the battery compartment at the rear
of the unit. The used batteries must be removed from the battery holders and
replaced by new button cells of the same type. Only LR44 type batteries may be
used. Care must be taken to ensure that the polarity is correct when inserting.
The plus terminal of all four batteries should point upwards. The batteries must
be checked to see that they are properly seated before closing the battery
compartment.
2. Cleaning
Clean the unit using only a dry cloth. If the unit is very dirty, the cloth may be
slightly dampened. Do not use cleaners containing solvents. Make sure that no
moisture enters the interior of the unit. When cleaning the lens, loose particles
must be removed using compressed air. Any remaining dirt can then be
removed with a soft brush or with a cotton swab moistened with water.
CAUTION Do not use cleaners containing solvents.