13englishIVB 3-MIVB 5-MIVB 7-M1) Option depending on model7. Check the antistatic clamp(5) for damage and have itreplaced by Nilfisk AdvanceService if necessary.8. Check that the control flap(6) for filter cleaning worksproperly. The control flapshould move back and for-wards easily.9. Clean the level hose (7).10.Fit a new filter element.11.Fit the filter holder. Ensurethat it is in the correct posi-tion.12.Fit bar and close bar handle.13.Dispose of the used filterelement in accordance withlegal regulations.Never use the vacuum cleanerwithout a filter.1) Accessory. Order No. shown in section 9.5.5768 TroubleshootingFault Cause Remedy‡ Motor does not start > Fuse of the mains socket hasblown.• Connect mains fuse.> Overload protection switchhas tripped.• Switch off the vacuum cleanerand allow it to cool for approx.5 minutes. If the cleaner can-not be started again, contactthe Nilfisk Advance servicedepartment.> Self-acting carbon brush isworn.• Have carbon brushes changedby Nilfisk Advance Service.‡ Motor does not run in auto-matic mode> Power tool is defective or notconnected properly.• Check that the power toolworks or that the plug is in-serted correctly.> The power rating of the elec-trical tool is too low.• Note that minimum power rat-ing is P>40W‡ The acoustic warningsounds. (Reduced suctionpower)> Suction power selected withsuction power control is toolow.• Set suction power in accord-ance with section 4.2.3. „Set-ting suction power“.> Hose diameter and switchposition do not correspond.• Set correct switch position forhose diameter.> Clogged suction hose/nozzle. • Clean suction hose/nozzle> Filter bag is full. • See section 7.2.2 „Replacingfilter bag“.