26ATTIX 30/50 H/M*) Optional accessories / Option depending on modelOriginal Instruction8 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 cleanercannot be started again,contact the Nilfisk-Alto servicedepartment.> Motor is faulty. • Have motor changed byNilfisk-Alto Service.‡ Motor does not run inautomatic mode *)> Power tool/pneumatic tool isdefective or not connectedproperly.• Check that the power toolworks or that the plug isinserted correctly.> The power rating of theelectrical tool is too low.• Note that minimum powerrating is P>40W‡ The acoustic warningsounds. (Reduced suctionpower)> Suction power selected withsuction power control*) is toolow.• Set suction power inaccordance with section„Setting suction power“.> Hose diameter does notcorrespond with switchposition• Set correct switch position forhose diameter> Clogged suction hose/nozzle. • Clean suction hose/nozzle> Tank, disposal bag or filterbag is full.• See "Emptying tank" or"Replacing disposal bag, filterbag" sections.> Filter element is clogged. • See section „Cleaning filterelement“ and „Replacing filterelement“.> Seal between tank and uppersection of vacuum cleaner isfaulty or missing.• Replace seal.> Cleaning mechanism isdefective.• Contact Nilfisk-Alto Service.‡ No suction power duringwet cleaning> 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 over7% should not occur if theimpedance at the transfer pointis 0.15 .