You say it lost its suction, then you also say this is plenty of suction power, seems you cant figure out the prob. Try cleaning the fan on the suction blower. The blades can get chocked with dust which will give you a reduced suction.
I went to my local Sears store and the salesman there looked at my vacuum and was able to resolve the issue. There was a piece of wire that had been sucked into the machine that then blocked anything else from being vacuumed up.
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If it's been over a year since you've replaced the belt that is the first place to start. Stretch belts lose elasticity and will still turn the brush roll but when the brush roll is lowered to the carpet it may not turn fast enough to pick up properly. If you have good suction at the end of the hose check to make sure there is not an obstruction in the tube where the hose goes into the bottom of the vacuum to the brush roll. Make sure your filters are replaced at least once per year and the bag is not full or has a lot of fine powder dust in it which can clog the bag.
Hose or tool is probably clogged. Is this an upright? Bagged or bagless? Have you changed the bag and filters? Cleaned out the brush and hose that goes from the brush area to the collection bag/cup? The only reason for a vacuum cleaner to lose suction but still work is a clog or dirty filter which blocks the air flow. Follow the air flow from the brushes to the bag/dirt cup. If the machine is bagged, change the bag. I use another vacuum cleaner to do this.While your at it, might as well change the belt.
On the right side of your vacuum head, there is a green belt indicator light. If when the unit is powered on and this light is not lighting up, you have a broken belt, or you didnt properly latch the belt in place.
a) Broken belt- you can use the belt from your shampoo'er if you have one, otherwise your nearest Kirby distributor has them for a couple bucks
b) As for the suction, the Kirby has 2 motors. 1 motor is for the cleaning of the floor, the other motor (where you see the vent on the left side) is for keeping the unit cool to expand the life, which btw average life of a kirby is 20yrs and they all come with a lifetime refurbishing plan. If your not getting any suction check the boot of the bag where it hooks onto the unit for any clogging
An Ultimate G has lots of suction. If you turn on your vacuum and the bag immediately inflates - that is how you can tell if your Kirby is moving air (suction). There is a more modern brush that came out with the Ultimate G Diamond and the Sentria that has stiffer bristles that dig up pet hair better.
Another way to test the suction is to spread some baking soda onto a hard floor and vacuum it up - you can see how much suction your Ultimate G has, or take off the vacuum head and put on a hose and test the suction at the end of the tube.
Ways to increase your Ultimate G cleaning efficiency. Take off the vacuum head and remove the brush roller. Attach your hose attachment and **** vacuum out the head. Put on a new belt, and remove any hair and or string or threads that may be wrapped around the brush roller. Put the roller back on and on the ends of your roller you will see that the ends spin and have numbers on them. If your vacuum brushroll is original - you could have your bristles rather worn and so you can align the #3 on BOTH sides of the brushroller. This would be a good time to consider upgrading to the Sentria Brush. Remove the bag, and replace with the CLOTH Kirby bag. It has the best filtration and it has the best airflow (which increases what you are referring to as suction). If you want to go the cheap route - at least get the paper Micron Magic with HEPA filtration (but it has slightly less air flow) Remove the side mini emptor from the vacuum and check to see if there is anything clogged up on either the vacuum or the mini-emptor. If your engine is running and inflating the bag and you replace the belt, the brush roller and to the cloth dust bag - your vacuum should pretty much run like a brand new Sentria Vacuum. Your vacuum system is outstanding, but may benefit from a little TLC if you have been neglecting it.
There are two things that you should check on this vacuum after running it without a bag inside. The first thing you should check is the filter that is underneath of the vacuum bag. This filter is underneath of a bracket, and the bracket can be removed by pulling straight up on the bracket. The bracket and filter are directly below the vacuum bag inside the vacuum bag housing. If the machine was run without a bag (or the bag fell off) then this filter is most likely going to be extremely clogged. You can simly remove the filter, and run it under hot water until clean. Make sure the filter is 100% completely dry before putting it back in the vacuum and using it. Running the vacuum with a wet filter will destroy your motor.
Now in terms of the belts. Where as the belts don't directly control the suction of the vacuum cleaner, they certainly facilitate the pick up of dirt and debris on the floor. Many people assume that since the vacuum is not picking up from the floor, then the vacuum doesn't have suction. You can test this by pulling out the attachment hose and feeling for suction, is there suction at the end of the hose? If yes, then the reason the vacuum is not picking up on the floor is because of the belts. If you don't have suction at the end of the hose, then you have a clog, some where or a dirty filter.
The belts actually are what spin the brush, and the brush basically sweeps the carpet, and throws the dirt and debris into the suction port, and when the dirt and debris are near the suction port, the suction then takes over and takes it to the bag.
There are two belts on this model, it's best to replace both of these belts at the same time. If you replace just one, then the other belt will wear out quicker. It's always best to replace these two belts in conjunction.
Once you have the belts, and you're ready to replace them, here's a great video that we shot here at Govacuum.com that shows you exactly how to replace these belts, as well as some basic maintenance on your roller brush;
I really hope that my repair solution was helpful to you in fixing your vacuum cleaner. If you have any further questions about this repair, or any repair, feel free to contact me at [email protected], or request a clarification here on Fixya.
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1. Take the brush roll and belt off the vacuum. Put the head back on the vac.
2. Turn it on and see if the bag inflates with good power. Does it sound normal? This will tell you if the problem is with the motor. If you have a good inflation of the bag and a bad noise in the motor, you need to take it in for service. If the motor is fine, you need a new spinning brush assembly.
The screw heads of the brush roll face towards the floor so you can adjust them while the brush is in the vacuum. When you turn them clockwise the brush comes down and gets closer to the floor for better carpet cleaning. You should also change the belt on that vac once a year. Just because the belt isn't broken doesn't mean it's o.k. Once they stretch out the power from the motor is lost and the brush won't clean anything.
you still have a clog in there something is keeping the brushes from spinning. Be sure to remove any hair/string etc twisted around the brushes. Make sure the belt hasn't slipped off the metal pin behind the brushes, this is what creates the rotation. The brushes have a hard plastic molding on each end that fit into the sides of the vacuum. Make sure you have these on the right way or they will strip out and you have to replace the housing and the brushes. Have you cleared any blockages from the feed behind the brushes? Be sure to take the hose and extend it out and run a broom handle or something down it to be sure you do not have something lodged in there. Good luck .. if you need more detail post back. These can be rebuilt if needed, hopefully it is just something lodged further down the suction canal.
You say it lost its suction, then you also say this is plenty of suction power, seems you cant figure out the prob. Try cleaning the fan on the suction blower. The blades can get chocked with dust which will give you a reduced suction.
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