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lf the bag becomes dirty aga n very quickly, anolher labric type may be needed. Do nol wash fet labric filler bags which have a sudace coating;genllyr nse lhe coal ng with water SYMPTOM unit w ll nol operate. TroubleshootingChart POSSIBLE CAUSE(S) 1. {mproper electricalconneclon. 2. Blowef wheel loose. 2. Suclion hose too long. 3. Dusl bag dirty. {DONOT REMOVE WHILEUNIT ISRUNNING) 'Tighlen wheel set screws to 165 inch-pounds CORRECTIVE ACTION 1.TurnpowerOFF-asslrreunilis wired per instruclions.