Vacuums

How to Identify and Fix Common Vacuum Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced Vacuum Technicians :

Loose connections will cause your vacuum cleaner to lose suction. Make sure that the dust container, the hose, the tube and the brush are all attached properly. If the problem continues, your vacuum cleaner might have a technical problem. If you suspect this to be the case, contact an authorised service agent.
One of the easiest ways to increase vacuum cleaner suction is to empty the dust bag or container. Dust containers need to have enough space for airflow, otherwise, they could get clogged and have less suction power. Regularly check your dust compartment and empty or change it when it`s already 70-80% full.
Check the Rotator Brush and Wheels

Sometimes pieces of string or other objects get wrapped around your vacuum`s rotating brush or around the wheels of the vacuum. Unplug your vacuum. Turn it over and have a look at the wheels and brush. If you see any pieces of string or objects lodged there, remove them.

Vacuum cleaners are fairly simple machines. They need power to be transmitted to the vacuum to create a suction force that lifts debris. 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.
The two main indicators to determine vacuum power performance are water lift and airflow. The water lift is measured in mmH2O, mbar or kPa. It represents the suction force and is the reference parameter for vacuuming liquids and heavy materials. The airflow is measured in m3/h or in l/s.
The most common cause of loss of suction is that the filters have become blocked. They may require cleaning or replacing. Another cause could be that the vacuum cleaner hose is blocked.
If your vacuum cleaner keeps turning off, this could be due to the following reasons: Blockages – check the hose and head for any obstructions. Filter – always check your filters, if these are clogged this could be causing the vacuum cleaner to work harder and lose suction power.
Based on the vacuums we`ve tested in our labs, bag vacuums tend to have more raw power, while bagless vacuums are more maneuverable. Interestingly, this has less to do with a choice between bags or dirt cups, and more to do with the companies that make them.
How Often to Empty the Vacuum Canister. Yes, the chart says to empty the vacuum`s canister after every few uses, but that`s at the very minimum. Rather than waiting for the canister to fill up all the way, the Vacuum Experts suggest you empty it after every use.
Suction is the air pressure differential between areas. Removing air from a space results in a pressure differential. Suction pressure is therefore limited by external air pressure. Even a perfect vacuum cannot suck with more pressure than is available in the surrounding environment.
The ECU will generally operate the SCV by PWM to control the rail pressure as required for the driving and load conditions. This pressure is monitored by the fuel rail pressure sensor to ensure suitability.
The Suction Control Valve or SCV is responsible for the control of fuel pressure inside common rail engines. It allows only the required amount of fuel to be pumped through the system. The SCV is a wear item, that is a good part to cross off your list of things to do – just like a cam / timing belt.
Take your time. Vacuuming slowly will allow your machine to suck up more dirt and dust, and ultimately get your rugs and carpets much cleaner. Slow vacuuming allows the brush to agitate the carpet properly and suck up the unclean bits that emerge.
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.
Suction pressure should be kept at less than 200 mmHg in adults. It should be set at 80 mmHg to 120 mmHg in neonates.
The HEPA filter is located under the dirt cup and under where it says HEPA. Twist the top counterclockwise to unlock the cap.
No, absolute pressure is measured with reference to a perfect vacuum so it is impossible for it to go negative.
Filters need to be cleaned

Rinse the filters with lukewarm water until the water runs clear. Let the filters dry fully before putting them back into the vacuum. If your vacuum is still not picking up dirt, you may need to replace the filter.

First, How long should you expect a vacuum cleaner to last? On average, According to Consumer Reports, vacuum cleaners last a median of eight years. But the lifespan varies wildly by not only brand but your own personal use. This should be expected.
To fix a clog in the hose, feed one end into a garbage bag, and poke the other end with the back of a mop pole, until you push the clog material out into the garbage bag. To fix a clog in the vacuum, whether it is a canister or bag, use your finger to feel for a clog. Pull as much of it out as you can and discard.
A damaged vacuum hose, clogged motor air filter or bad suction motor can cause the vacuum cleaner to shut off during use. A tripped overload on the vacuum suction motor can shut off the vacuum cleaner during use. If your vacuum has a reset button, push it; if the vacuum seems hot, let it cool off first.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My hoover U5720950 windtunnel bagless vacuum loses suction when I lower the handle.
ANSWER : When you lower the handel it is pinching the vaccume line constricting suction

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I purchased a brand new Eureka Pet vacuum, sorry don’t know exact name but it the one that has the self cleaning duster on it. Last night I used the vacuum on my carpet, it was working fine until I accidently sucked up the corner of a scarf that was hanging off a couch. I shut the vacuum off, pulled out the scarf and and resumed vacuuming. Much to my dismay the suction on the vacuum had ceased. Can you tell me if there is a reset button on the vacuum? The vacuum does not appear to be damage
ANSWER : If the motor is running, there should be suction. Possible problems depend on whether it’s a canister or upright and are:
.A clog in the hose, UR or canister. Detach hose. Drop small coin in one end and lift hose causing it to roll out the other. If it does, no clog in hose. Drop same coin into hose opening on power head. If it rolls out, no clog in PN.
.Broken fan blades, UR. Needs to be taken to shop for repair/replacement.
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.A reset button is for use if the motor isn’t running, so won’t have anything to do with the suction.

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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.

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Dirt devil vacuum cleaner–trouble vacuuming dirt and pet hair on carpeting –is the problem with the spinning brush which contacts the floor,  not contacting the carpeting??  I thought (when I bought this vacuum) that the aforementioned brush was adjustable to various heights of carpeting.  Sometimes, it seems like nothing is being vacuumed up –unless I have just put a new bag on the vacuum… Do I need or can I replace the spinning brush on the bottom of the vacuum so it kicks up and vacuums
ANSWER : Try replacing the belt. Rubber belts stretch out after about a year.

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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.

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I purchased a Eureka C4910 last year and have a question that I am hoping you can answer.

There are two motor actions with this vacuum, 1) the vacuum suction, and 2) the beater bar. The action of the beater bar is that motor is supposed to automatically shut off when the handle is in the complete vertical position assuming the vacuum is stationary, but then turn on when the handle is tilted toward the floor, assuming the vacuum is moving back and forth.

The beater bar motor turn-on mechan

ANSWER : Good day!

Normally when the motor is easily moved back and forth means that it have a proper lubrication,proper alignment and no clogs.

When the motor and the belt is OK the problem could be on electrical wiring and switch.

If found electrical switch burned out you need to replaced it because when the switch is burn the contact of that switch is open even you turn it ON.that’s why the motor is not function because the voltage is not pass through the circuit because of open switch.You need to replaced it.
And check some fuses if any and other burned electrical wire.Replaced it also.

Thank you and don’t forget to rate my answer.

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Blue Moon S658 Miele vacuum problem where suction cuts off. The power light stays on. Sometimes I lose full suction, and other times I just lose partial suction. This shows on the handle by going from 1000 to 400, or nothing. Any thoughts on what this could be?
ANSWER : This is a problem with the circuit board in the SES-125 hose. If you replace the hose, this problem will stop. Unfortunately this is the only solution to this problem.
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.-R

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Hoover tc5238 bagless cylinder vacuum cleaner – no suction
ANSWER : You have a clogged hose. Sometimes a Q-tip or something like that gets sucked up and then stuff jams up against it. You can use a long stiff wire with a hook bent in the end to reach the jam and work it loose. Just be very careful not to poke the wire through the hose! Work slowly and get the clog out a bit at a time.

The clogged hose would also account for the red light.

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