14ATTIX 350-0H/360-0H/360-2HATTIX 550-0H/550-2H/560-2HXCATTIX 751-0H1) Option depending on modelcollar.8 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-Alto service depart-ment.> Self-acting carbon brush isworn.• Have carbon brushes changedby Nilfisk-Alto 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 ra-ting is P>40W‡ The acoustic warningsounds. (Reduced suctionpower)> Suction power selected withsuction power control is toolow.• Set suction power in accor-dance with section 4.2.3. „Set-ting suction power“.> Hose diameter is not right forswitch position.• Set correct switch position forhose diameter.> Clogged suction hose/nozzle. • Clean suction hose/nozzle> The safety filter bag is full. • See section 7.2.2 „Replacingfilter bag“.> Filter element is clogged. • See section 4.5 „Cleaning filterelement“ and 7.2.3 „Replacingfilter element“.> ATTIX 560-2HXC only:Defective cleaning mecha-nism• Contact Nilfisk-Alto Service‡ No suction power duringwet cleaning> Tank is full. (Float does notclose the suction opening).• Switch off the cleaner. Emptythe tank.‡ The vacuum cleaner swit-ches off during wet clea-ning> Tank is full. • Switch off the cleaner. Emptythe tank.‡ Voltage fluctuations > Impedance of power supply istoo high.• Connect the cleaner to anothersocket closer to the fuse box.Voltage fluctuations over 7%should not occur if the impe-dance at the transfer point is ≤0.15 Ω .