FAQ Search Select a Category BarkBath Cleaning Formulas Cleaning Tips Commercial Products Corporate Deep Cleaners Hard Floor Cleaners Mops, Brooms and Brushes Parts and Accessories Steam Sweepers Vacuums Warranty Web Site and/or go My Powergroom® Pet Compact makes excessive noise. What should I do? Answer: First, check the Pre- and Post-Motor Filters for debris. Dirty filters can restrict airflow. The pre-motor filter may be hand-washed in cold water with mild detergent. The Multi-Level pleated filter must be replaced when dirty. You can replace it by clicking here: http://www.bissell.com/parts/?sc=part&productid=8899&partid=9764 Reinstall the pre-motor filter when it’s completely dry. If you don’t regularly maintain the filters, the buildup could damage the motor. A clogged hose may also cause the unit to sound strange. See our “clearing clogs” FAQ for details. Check the brush and belt for damage. See our “brush not turning” FAQ for details. If your vacuum is still too loud, please take it to a technician. You can find your nearest BISSELL® Authorized Service Center by clicking http://www.bissell.com/support/product-support/service-centers/ or by calling 1-800-237-7691, available 24 hours a day.