Shop vac my craftsman vac is blowing dust out the difuser filter. Have cleaned the filters out. Any other suggestions?

Maybe it over heated or the hose was jammed. Unplug it for a few minutes, check the hose for any stuck debris, then plug it back in. Shop vacs also come with a filter. If the filter is too dirty, it might have shut off as a safety precaution to not cause a fire. Follow directions to clean the filter. Hope this helped. Dee

Cleaning filters on a bagless vacuum helps but filters should be replaced frequently, as often as every 3 to 6 months on some vacuums. Foam filters aren't as critical to replace because the pores are very large (which also means they don't filter out the small particles) so they don't clog as easily but paper filters have much tighter pores which become clogged and restrict the airflow. Cleaning paper style filters with water which can pack the fine dust into the pores clogging the airflow even more.
I recommend replacing filters st least onceor twice per year and cleaning them after each use for best performance and longer vacuum life. Blowing the dust out with an air compressor is my preferred method.
Changing filters frequently on a bagged vacuum isn't as critical because the bag collects most of the fine dust, dirt and gunk. The surface area of a bag is much greater than that of a filter so a bag is less likely to get clogged than a filter. Most homeowners change the bag once per month which keeps the air flowing smoothly.

The foam filter is for use when using the vac. to pick up water. Now you should have a paper filter for picking up dry material.If possible you may want to look inside of one at the store. Hope this helps.

It sucked up some of the muddy water into the impeller while you was using it. Then it dried out and turned to dust. After you get done using it for wet pickup take a water hose and let a little clean water **** into the impeller, with it off the tub. That will clean it then let it run till dry. That will keep it from getting moldy also. And always put a filter on before using for dry stuff. They make a universal filter that is like a satin bag. That is what I use instead of paper one. Even for water.

hi from uk may i suggest you remove cover and the new dust collection bag then if you look in the bag compartment there is a gauze filter fitted usually grey in colour ? at opposite end of compartment where bag connects this gauze filter is the outlet from bag compartment that the air exhales when vac is operating ie as vac **** up dust into bag the bag has microscopic holes that allow sucked up air and dust to collect but keeps dust from passing into bag chamber but allows air to escape thro holes and so enter bag chamber then escapes via the gauze filter to outside of vac hope you follow this ?? now if this filter is blocked/never been cleaned/changed ? then the symptoms of indicator bag full light will come on you can remove and wash filter if it is gauze typ? dry and refit then try vacuuming ? or replace filter they are not expensive usually in pack of 3 in uk DO NOT RUN VAC WITHOUT THIS FILTER FITTED ! or you will have some dust in the room ? hope this helps?

should have a exhaust filter in the hole. it is round and 5-6 inches long with a type of filter on the end.

Hi,
Yes there should be a filter fitted onto the top section.

For suppliers, it would be cheapest to find your nearest stockist, or buy online and have it shipped. It's still current stock - so spares should be readily available.

Sears stock it -
CRAFTSMAN FILTER

Thank you for using Fixya,

there should be a cover or sock over the filter,this will stop the dust.the paper filter is the part that can not get wet. if you don't have a cover for your filter use an old sock or something simular to a sock.

You need to check the filter and make sure it's on all the way. To do this take the top off the vac, make sure the filter is all the way up and in place. There should be a plastic nut to hold it in place. If you are using it for fine dust particles such as drywall dust, you need a special filter for small particles. The filter that comes with the vac just won't do it!