Dyson Slim DC18 All Floors HEPA Bagless Upright Vacuum – Iron/Titanium/Yellow\015 No suction or very little was working fine. Have taken all hoses off and cleaned brushes. At the bottom of wand hose when taken off there is a big white motor I don't know how anything passes it but very fine dirt\015

How to Identify and Fix Common Vacuum Problems ?

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A clog is a common (perhaps the most common) reason that a Dyson unit loses suction. They have a number of choke points in the airflow paths. Some considerations follow: Hoses: because of their often rough inner surfaces and inevitable bends, hoses are prime locations for clogs.
Check both ends of the tube for any debris that may clog the machine. Make sure to empty dirt bin and clean the filters if they are dirty. If you experience no suction when using a tool, remove the tool and check each opening for clogging.
Use Some Water

A little bit of water can do wonders for boosting a suction cup`s grip. Using warm water, rinse the whole cup so it softens it up. Shake the drops of water off the cup quickly and then put it up on the wall. That can often do the trick.

The suction power is to be measured at the end of the tube of a complete vacuum cleaner (i.e. with tube, hose and filters – but without nozzle). Some manufacturers show the results from measurements made at the suction of the actual vacuum cleaner.
It is obtained by measuring how many inches up a tube the vacuum motor`s intake can pull up, or lift, the water. For the Water Lift test, there is no air moving through the motor. It is a sealed suction measurement to find the pure suction force of the motor.
Clean the surface you are applying the suction cup to. It won`t adhere well to a dirty surface. To enhance suction, a tiny dab of Vaseline or cooking oil may be rubbed on the rim of the cup. Press the cup all the way down, against the surface.
So, the usual areas that cause suction loss include the wrong height setting, stuck rollers, a faulty gasket, a broken vacuum belt, a filled bag, or a clogged hose.
Gravity and friction are the two main forces that make vacuum suction work. While gravity pulls molecules in the air toward the earth, creating an atmospheric pressure, the suction cup and vacuum pump cause a pressure difference, attaching both surfaces.
All vacuum cleaners operate based on air flowing from the opening at the cleaning head or tool, through the vacuum cleaner and the bag and/or filter system and then out the exhaust port. This airflow is created by the vacuum motor, which also may be referred to as the suction motor.
Suction pressure should be kept at less than 200 mmHg in adults. It should be set at 80 mmHg to 120 mmHg in neonates.
What is a Good Suction Power for a Vacuum Cleaner? An upright cordless vacuum cleaner should have at least 100 air watts to effectively clean a variety of floor surfaces, with the best Samsung vacuum cleaner reaching up to 210W*.
The typical range of Pa for a regular robot vacuum cleaner is around 2500 to 3000 Pa. The higher the value of Pa, the greater the force lifting the debris off the floor.
While it is possible to drive in this manner, it is not recommended. If you drive with a vacuum leak for a long time, the increased temperatures in your engine will begin to cause major damage. The low-fuel mixture will burn fast. This would be more than your engine cooling system can manage.
If all you hear from the vacuum unit is a click at the when you try to start the vacuum motor from inside the house, then the motor in the unit is dead and has to be replaced. A strong odor from the shellac, which coats the copper coil windings, is an indicator that the motor is about to or has burnt out.
An easy way to test the operation of the check valve is to disconnect the hose from the brake booster with the engine off (See Image 2). If you hear a whooshing sound when you disconnect the hose, this is an indicator that the check valve is working.
Suction cups adhere best to smooth, non-porous surfaces such as tile, glass, fiberglass or metal. To ensure a firm bond, surfaces should be totally free of dirt and soap film before attaching the suction cup.
Make sure both the inside of the suction cups and your window are clean and dry before application. To enhance suction and help keep the seal tight, a tiny dab of Vaseline or cooking oil may be rubbed on the rim of the cup, or dampen your fingertip with water and lightly moisten the inner rim of the suction cup.
If the machine switches on and off in quick succession, while making a pulsing noise, it could be an indication to either a dirty/blocked filter or an obstruction in the machine affecting the airflow. In the event of an airways obstruction the machine is designed to pulsate.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Water and cleaner not coming out, The machine is only 6m old and was working fine, I have cleaned every where I can to see if there was a blockage but nothing is working. The heater is working, there is a suction but the water and soap will not realease when triger is pulled. it will not work on on the tool spay.
ANSWER : Check the complede length of the hose. You may find a crimp in the most inconvenient place. You say you cleaned everything … can you blow through the hose where the cleaner comes out? (don’t drink anything!)

Hoover Windtunnel My Hoover Windtunnel is 3 years old. It worked great until yesterday when it lost all suction. I have followed the manual to trouble shoot any possible clogs and could find none. Then I noticed that when I remove the dirt collection cup and held my hand over the vent the suction is fine and strong. So… I replaced the hepa filter thinking that might be the problem. That didnt’ work. The motor runs fine. The suction without the dirt cup inserted is strong. As soon as you insert
ANSWER : Mine does the same thing. There is no suction. I found that there is a door that opens when you tilt the handle in the down possition. I think there should be a spring in place so it can open. Until I find a replacement spring I have to open the door manually throught the opening under the light.

Hoover Windtunnel My Hoover Windtunnel is 3 years old. It worked great until yesterday when it lost all suction. I have followed the manual to trouble shoot any possible clogs and could find none. Then I noticed that when I remove the dirt collection cup and held my hand over the vent the suction is fine and strong. So… I replaced the hepa filter thinking that might be the problem. That didnt’ work. The motor runs fine. The suction without the dirt cup inserted is strong. As soon as you insert
ANSWER : Either the hose has a clog, or the inlet down by the belt is clogged. Is there suction at the end of the hose, if not then it is clogged. If there is suction, then it has to be clogged down below by the brush roll, check that inlet. There also is a filter at the bottom where the dirt cup (and bag) is, check it also.

Have a Centralux Aerus about 5 years old. Don’t see a model number. There is suction but beater brush quit working. Was using for a few minutes, shut it off for a few minutes, turned it back on and suction only. Tried the reset button also. Tried the sidekick attachment and it works fine. There was no smell like something was hot. Belt is fine. Are there any fuses or anything else to try? This vacuum cleaner has not really been used that much, it is hard to believe the motor would need replaced
ANSWER : There probably is a loose wire in the handle near the switch or a wire off near the swivel elbow near the vac power head. With the right fastener tool to remove some screws you can fix it yourself

My Dyson DC17 beater bar motor works intermittedly. I have to almost whack it on the floor to turn it on and then shuts off again. I have checked the belt and it is fine, also have checked for blockages. The switch to turn the beater bar on or off will not work when the beater bar motor is off. the suction is fine though.
ANSWER : Buy a Kenmore for less money

Suction Problem I was vacuuming and stopped to empty the cannister. When I started vacuuming again – the suction wasn’t working properly. The vacuum was just pushing stuff around the floor. I cleaned the hair out the brush on the bottom and it still isn’t working. It was working fine before I emptied the tube 🙁 I can’t figure out what happened.Help!
ANSWER : Greetings from GoVacuum,
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.I believe what may have happened is that your vacuum cleaner belt has either broken, or been stretched so far that ithe brushes are no longer spinning fast enough.
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.Here’s what you should do to diagnose this problem.
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.1. Take the suction hose out of the back of the vacuum (assuming that your vacuum has on-board tools), and see if you have any suction coming from the hose. If you do, this indicates your belt is bad.
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.2. If you don’t have suction coming from the hose, then it may be something as simple as replacing the filters, to a clog in the vacuum, or to your motor going bad.
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.In my professional opinion though I would say from what you stated that the belt is mostly likely going to be your issue. If you can provide me the model number of your vacuum cleaner, I can walk you through step by step on ow to replace the belt.
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.I have posted a short YouTube video on a vacuum belt change, this is not for all vacuums, but it will give you some idea of how to change a belt;
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Thanks, and if you have questions about your particular model, please feel free to contact me at
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.[email protected]
.1-866-468-2288

No suction no blockages was working fine
ANSWER : Hi there,

I’m sorry to hear you’ve had difficulty with your DC18. If your machine isn’t picking up as well as it should be, there may be a blockage in the machine. If you haven’t been able to locate one in the cleaner head or internal hose, I’d encourage you to get in touch with us directly for further assistance.

You can reach us on 1-866-693-9766 (US), or 0800 298 0298 (UK). Please have the machine to hand when you call so one of our advisors can run through some checks over the phone with you.

We’ll look forward to hearing from you.

Best wishes,

Jack
Dyson Online Customer Support
http://www.dyson.com

Suction stopped. Roller and belt working-in fine order. Checked hoses have not found any blockage. Blowing out air or sucking so little can’t feel it with hand on hose end. Help!
ANSWER : Either a blockage or the main air filter is blocked , some it can be washed and others it must be replaced

I would check the owner manual and look at the filter, foam ones can and usually have instructions where they install to wash them.