1. Switch the product off using the on/off switch.
2. Disconnect the product from the power supply by unplugging the
mains plug and secure it against unintentional restarting.
3. Lift off the cover ring (item 1) and place it next to the product.
4. Carefully remove the contaminated pre-filter mat (item 2) and dispose
of it in accordance with the applicable regulations.
5. Insert a new pre-filter mat (item 2) and replace the cover ring (item 1).
d) Replacing the main filter
1502778-02
Fig. 45: Filter change, pre-filter mat
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