WamBlee W420 Manuel D'instructions page 17

Changing the batteries
The supplied batteries must be changed 5 years after their installation.
Batteries must only be of the specific models approved by WamBlee; of
unapproved models may involve the malfunction or breakdown of
the device .
To change the batteries proceed as follows:

Make sure the knob (1) is in the 'OFF' position.

Use a suitable Phillips screwdriver to remove the 4 screws on the
underside edges of the device (6).

Remove the upper part of the case; if necessary tap the edge
gently.

Remove the three old batteries (8) and replace them with three
new ones. Make sure they are installed the right way round
(positive pole facing top of device).

Press the push button (7) and check the test sequence as
described in 'Periodic checks'.

Re-close the upper lid, making sure the seal is inserted in its seat
correctly and is not damaged. If you notice that the seal is
damaged or see any infiltration of foreign matters inside the
device replace the seal.

Screw the 4 underside edge screws back in; tighten properly but
not excessively.
The batteries should be disposed of properly and not thrown in the
household trash. Check with authorized operators on proper disposal of
used batteries indicating the chemical (Li-MnO ).
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EN
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