What should I do if my Blower Joe SBJ604E gets clogged or jammed? Your Blower Joe SBJ604E comes with an anti-clog vortex impeller designed to prevent clogging when mulching. If your unit does become clogged, unplug the power cord from the unit, remove the upper suction tube, and use a wedge to remove any debris from the vortex impeller. For any further assistance, please contact Snow Joe® Sun Joe® Customer Service (1-866-766-9563). Related articles How many miles per hour (MPH) does the blower setting on my Blower Joe SBJ604E produce? What should I do if my Blower Joe SBJ603E gets clogged or jammed? What are the best uses for my SBJ605E Blower Joe? Does my blower vac come with a shoulder strap? What is the reduction ratio of the mulch produced by my Blower Joe SBJ603E?