HEPA filter missing – operation only possible after insertion
The message appears if there is no HEPA filter in the drill. Insert a new HEPA filter. You can only continue working if a HEPA filter is inserted.
If the drill is switched on, the message ‘Filter change: HEPA filter’ appears after inserting the HEPA filter.
Answer the question about whether the filter has been changed. A positive answer sets the operating hours counter of the HEPA filter to 0 (zero).