Broan-NuTone CV653 Bagged Central System Vacuum

How to Identify and Fix Common Vacuum Problems ?

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

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.
If the motor still has some life in it, it will start, but if it is going bad, it will only work for 10-15 minutes or less. If it doesn`t start at all, it is obviously bad. Sometimes slapping the motor or vacuum unit will jar the motor and get it to work again for a few minutes. Intermittent motors should be replaced.
A good quality machine should have somewhere in the range of 600-800 airwatts, this will provide enough suction for homes anywhere from 2500-6000 sq. ft. If you have a larger home you will want to go with a power unit that has atleast 1000 airwatts of power.
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.
Low suction or poor pick-up may be due to a clog in the vacuum cleaner. If you notice a change in the sound of the motor or a reduction in the spinning action, check for clogs. First, remove the Easy Empty dirt tank from the vacuum and discard all dirt and debris.
Clean or replace the filter. A clogged filter will restrict the air flow, meaning there may not be enough suction to pick up dust and dirt. A simple filter change might be all your vacuum needs. Your vacuum should be cleaned every so often, as well.
When the pump reaches its specified “ultimate vacuum,” the pump has an actual flow rate of zero, by definition. At this point, the pump can no longer perform any work, that is, it can no longer move the vapors generated by the evaporative application.
Many reasons can cause low refrigerant suction pressure, i.e.: low indoor temperature, dirty filters, restricted ducts, undersized ducts, closed dampers, frosted coils, restricted refrigerant line, restricted piston, incorrect piston, restricted strainer, bad indoor blower motor ect.
This can be caused by low airflow (e.g., dirty filter, slipping belt, undersized or restricted ductwork, dust and dirt buildup on blower wheel) or a dirty or plugged evaporator coil. Checking superheat will indicate if the low suction is caused by insufficient heat getting to the evaporator.
Boil old suction cups to revive them.

Take the pot off of heat and drop your suction cups in for about 30 seconds. Take them out with a pair of tongs and pat them dry on a lint-free towel. Try to use the suction cups right after you dry so they`re still warm and flexible.

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.

Air watts refer to the number of watts used by the vacuum cleaner to carry a unit of air through an opening or nozzle. The higher the air watts, the higher the suction power.
The most common cause of vacuum pump failure occurs due to broken belts, electrical problems inside the unit, or vacuum hoses that fail.
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.
The most common cause of vacuum pump failure occurs due to broken belts, electrical problems inside the unit, or vacuum hoses that fail.
Low suction or poor pick-up may be due to a clog in the vacuum cleaner. If you notice a change in the sound of the motor or a reduction in the spinning action, check for clogs. First, remove the Easy Empty dirt tank from the vacuum and discard all dirt and debris.
We have two possible ways of adjusting the pressure in a vacuum system: first, by changing the pumping speed (altering the speed of the pump or throttling by closing a valve); second, through admission of gas (opening a valve).

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

No suction My Hoover Wind Tunnel vacuum runs but there is no suction. The last two or three times I used it, it shut itself off after having a burning smell. When I unplug it for the suggested 30 minutes, the motor will run again but no suction. What is wrong?? Should I just buy a nve one? This one is 8 years old.
ANSWER : Sounds like your motor bearings are going bad. This is generally indicated by the motor overheating, and the heat transferring out through the motor pulley, which is where the belt attaches. So, your machine is overheating, melting the belt, and then tripping the thermal cutout. When it cools and you restart it, the belt is no longer functioning due to being melted, and this would make it not pick up on carpet. If you look at the motor pulley and it is turning blue: this is indicative of overheating.
.The other possibility is that there is a clog, which is also causing your motor to overheat; so before you throw it away make sure all of your air pathways are clear.
.The fact that you’ve had it 8 years is somewhat remarkable, however, since most vacuums of this type are averaging a 3-5 year lifespan. (And half that for bagless.)
.So, check for clogs, and if it’s not clogged, you’re probably due for a new machine.
.
.-R

No suction After taking the vacuum apart, I noticed there is no suction at all. The motor runs, belt runs, but no suction coming through.
ANSWER : You have a clog somewhere in the vacuum. Check the hose and the little trap door on the underneath side of sweeper.
Does the brush turn? If not, then the belt that drives the brush is broken. Replace the belt

Jim

I have a Eureka Boss Model 411… I need to know where the reset button is for the suction motor. The canister was clogged on the backside, I didn’t see it and the suction motor shut off. I have cleared the obstruction, but don’t know where the reset is for that motor. I know how to reset the brush head motor.
ANSWER : If your vacuum motor overheats, it will stop working. it will start working again once it cools.

Does not pick up, no vaccum, motor runs, no blockage, should feel suction on hose outlet without hose hook up. Paper filter missing over cloth filter. float overload ball free, seal on section good no leakage. Maybe bad motor but runs.
ANSWER : Here. is a Link to one of my Tips:
www.fixya.com/support/r6311178-vacuum_brush_bar_not_spinning

This. should solve the problem.

Good Luck!

Jim

The motor won’t run. There was interupted running
ANSWER : What model#? Plus check to see if their is a reset switch, sometimes on hoover the switches do go bad, but if the unit is new could be still under warranty

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.

Hi I need help because I have a problem with my Electrolux Centralux Central Vac system in my house. When I plug the vac hose in the central vac socket at first I heard the motor running very gently with NO suction then after a minute or so it went completely dead and they is NO motor sound, suction, or anything happening what so ever. Can anyone tell me what this problem is???
ANSWER : Have you checked for a clog in the lines or in the hose? If there is no clog in the system anywhere, then your motor could be dying.

Hello, I have a problem with my Eureka Powerline bagged upright vacuum. It has a 12 amp motor and is model #4352, Type D. It was probably bought new in 1998. My problem is, while vacuuming today the motor seemed to slow down all of the sudden and then began smelling like burning rubber. I shut the vacuum off to check for blockages but could not find anything blocked. When I then turned it on again it runs but seems to only be running at 1/2 the motor speed and still has the rubber buring smell.
ANSWER : It sounds like a rubber sealing in the motor has come loose and is being constantly rubbed against the walls of the motor with would cause the smell and loss of motor speed caused by the fricton of rubber against the rod so if you can get to the motor try to open it and see if you can get it if not take it to a small engine repair service hope this was helpful:)