Vacuums
How to Identify and Fix Common Vacuum Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced Vacuum Technicians :
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.
The suction motor creates vacuum pressure and suction by rotating a motor fan. The impeller rotates at an incredibly high speed of about 30,000 to 35,000 RPM. A suction motor`s power is measured by multiplying the rate of air flow and the vacuum pressure, which induces air flow from the brush through the hose.
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.
Even in a vacuum there remains some pressure… it is simply a pressure at a magnitude below the surrounding atmospheric pressure. Vacuum does not necessarily mean the absence of all pressure; vacuum can be any pressure between 0 PSIA and 14.7 PSIA.
All living organisms require energy to grow, move and survive. In space, there`s not enough breathable oxygen to allow these processes to happen. Plus, in a low-pressure environment like space, even if someone did have air in their lungs, it`s likely the air would expand quickly and their lungs would burst.
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.
Suction is the measure of pressure created by a vacuum motor measured in inches of water lift. Air flow is the measure of air volume flowing through a system measured in CFM or cubic feet per minute.
Overcharging leads to overfeeding the evaporator with refrigerant, which leads to higher suction pressure. Another possibility is having oversized EXV causes an overfeed to the evaporate, which increases your suction pressure.
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.
In science, a vacuum is a space without matter or air.
vacuum, space in which there is no matter or in which the pressure is so low that any particles in the space do not affect any processes being carried on there. It is a condition well below normal atmospheric pressure and is measured in units of pressure (the pascal).
Gravity pulls on the atmosphere, compressing it, and creating pressure. If we could magically turn off gravity then the atmosphere would be released from that compression and spring away from the Earth. So, at the root of it, gravity is the thing that keeps the atmosphere near the surface.
Gases (like air) expand to fill their containers, and in space there is no container, so it would simply expand until it is the same density as space itself.
2 Answers. Gas pressure is caused by the molecules of gas striking the walls of a container, or in the case of Earth`s atmosphere, the molecules of air hitting the earth. In a vacuum, there are no gas molecules. No molecules, no pressure.
Vacuum is defined as air pressure below atmospheric pressure. The vacuum level is the difference in pressure between atmospheric pressure and pressure in the evacuated system: 0% vacuum = 760 torr = 14.7 psia = 29.92 inc mercury abs = 101.4 kPa abs. 50% vacuum = 380 torr = 7.3 psia = 15 inc mercury abs = 50.8 kPa abs.
Regardless of what type of vacuum cleaner is being used, all of these products have a motor to create the negative pressure, or suction, necessary to draw in the dust and debris.
Vacuum suction pressure in adults is 120mmHg.
The lowest vacuum pressure is recommended to reduce the risk of hypoxia and tracheal mucosa injury. However, the pressure has to be strong enough to remove the secretion. Usually, it`s between 80 to 120 mmHg.
Regardless of what type of vacuum cleaner is being used, all of these products have a motor to create the negative pressure, or suction, necessary to draw in the dust and debris.
The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. If you are sitting in a space ship and another space ship explodes, you would hear nothing.
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.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
It has no suction. It was fine yesterday. I washed the dirt container and the filter, let it dry and put it back in the vacuum. Today my vacuum isnt picking up any dirt and has no suction. When I took the hose out of the back, it started blowing dust and dirt out but still no suction.
ANSWER : Look for a place where the vacuum line has to turn in a near 90 degree turn. It’s easy for it to get stopped up there.
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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.
.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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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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Infinity Vaccum by Shark, model number NV31COS, will not start. The vacuum was running just fine until it grabbed the edge of a curtain. Turned it off to release the suction. Turned it back on and was working fine. About a minute later the vacuum was making an odd noise. Every 2 seconds or so it would “heave” (lack of a better word) then go away, then come back and so on. Turned the vacuum off and checked for blockage, none that could be seen or felt, and now the vacuum won’t turn. Any suggestio
ANSWER : Carpet brush won’t turn when vac on
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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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No suction i have a hoover supreme wind tunnel vac and its relatively new and the suction, well……sucks. It wont pick anything up! I am extremely frustrated! I picked up a ball of fuzz off the carpet and held it under the vacuum and it still wouldn’t **** it up. I then shoved the fuzz up INTO the vacuum. It fell right back out. I may as well not even vacuum. Please help!
ANSWER : I have found more vacuums on the way to the dump because they were full. Check. Is it full?
.If not the air way is clogged.
.If not the air way is clogged.
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My son dropped the vacuum down the stairs and now the vacuum works but the front part of the vacuum does not drop back down when vacuuming any type of floor. It slowly drops and does not stay on the carpet. hope this makes sense. I have cleaned filters and suction seems strong at the small hose. the beater bar rotate very fast still.
ANSWER : May be part missing. this is unit has 5-year warranty.you can send to service.
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Poor Suction Heya! So I just picked up a used Dyson, but when I vacuum with it, the suction is pretty weak and it spits all kinds of stuff out the back and into my feet. When I pull the hose I have good suction, but in regular mode it hardly picks up anything. The brushes are spinning, and it eventually will clean an area if I go over it again and again. Maybe a clog somewhere? Please tell me that Dysons have better suction than my $50 Dirt Devil! Thanks!
ANSWER : I recently bought a second hand Dyson DC07. Its suction was poor. I removed all the un-clipable pipe bits and to remove any blockage but it all looked clear. The Final Sponge and hepper filter did have a lot of dust in it and the rotating brush was full of hair but nothing bad.
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.I eventual gave in to curiosity and removed the three screws in the top or the yellow removable dust collection tube and cyclone bit to see what was in there. The mechanism to release the flap at the bottom of the collection tube does not allow you to remove the lid completely but it does open far enough to get inside. I found the whole top section of the yellow plastic bit blocked by a big plug of compacted dust and a champagne cork. If you are willing to take the risk and have a torx 15 screwdriver handy it that part may be blocked. It did get a bit messy.
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.If I was going to attempt the same procedure I’d remove the dust collection unit from the vacuum cleaner as I did before, but leave the clear tube attached and the emptying flap firmly closed to reduce the mess from the dust falling out the bottom while cleaning the top part.
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.I eventual gave in to curiosity and removed the three screws in the top or the yellow removable dust collection tube and cyclone bit to see what was in there. The mechanism to release the flap at the bottom of the collection tube does not allow you to remove the lid completely but it does open far enough to get inside. I found the whole top section of the yellow plastic bit blocked by a big plug of compacted dust and a champagne cork. If you are willing to take the risk and have a torx 15 screwdriver handy it that part may be blocked. It did get a bit messy.
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.If I was going to attempt the same procedure I’d remove the dust collection unit from the vacuum cleaner as I did before, but leave the clear tube attached and the emptying flap firmly closed to reduce the mess from the dust falling out the bottom while cleaning the top part.
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