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My Kenmore Central Vac loses suction

Hi My Kenmore Central Vac loses suction while vacuuming, it will be doing fine... then loses it for a few seconds, then back on. If I twist the connect at the wall base the suction stays on the whole time (but then it's not lined up), I've never thought it worked well. (I've been in the house for 5 years and the unit is about 10 years old) I don't want to pay a repair guy to come out just to tell me I need to buy a new part.... is there any ideas or solutions?

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  • Wpgmom Mar 13, 2008

    It is the hose... I just checked the other outlet an it has the same problem... I'll buy a new hose and see if the problem persists... thanks so much!

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Could be a problem in the hose if its the electrified crushproof style hose. If its 10 years old it would be worth replacing that to start and see if that solves the problem.

Posted on Jul 26, 2009

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Do you have the same problem in all of your outlets? If you do, then there is a problem with the hose end. If it is only at one outlet, then that outlet has a problem.

Posted on Mar 13, 2008

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1 Answer

My dyson dc 54 loses suction after a few seconds of suctions


Hi,

I'm sorry to hear you're having problems.

This does point towards a blockage of some kind and I would ask you to check the inlet on the cyclone itself as well as the bin. Please also brush down and tap out the cyclone shroud. Make sure to do this outside over a bin as it will produce very fine dust.

If you have further difficulty, please contact Dyson directly on the numbers provided as there may be something more technical that requires further diagnostics.

If you continue to have difficulty, please give the Dyson Helpline a call on 1-866-693-9766 (US), 1-877-397-6622 (CA), 0800 298 0298 (UK). Our experts will be happy to talk you through some further diagnostic checks when you have your machine easily to hand.

Oct 12, 2015 | Dyson Vacuums

Tip

How to diagnose a clog in your Central Vac and how to remove it


Symptoms of a clog
Low Suction/No Suction
No suction at Inlet

Tools required
Wet/Dry Vac or vacuum with decent suction and a hose
Phillips Head Screw Driver
Metal Coat hanger (straightened out)
Flashlight

First things, first, make sure your canister is empty at the unit. I know, most people would have already checked this but I have been to a lot of client's homes and this was the issue. They were full or almost full. So just check it before you go to do anymore diagnosing. I suggest emptying it anyways, this way you can see what you clogged in your unit

Now if your machine has a utility valve on the unit turn on the manual over ride switch on and lift the utility valve and if you have suction your machine is fine, you have a clog. If you have no suction or poor suction
-Canister not attached properly
-Filter clogged
-There is a disconnect of pipe within your walls (I've seen it and it renders your system useless and is going to be expensive to repair the system)
-Your motor is going in your system (Your vacuum should sound like grinding metal and chances are it's throwing sparks and smells of burning electrical, turn the unit off immediately and unplug power cord) Your unit will need a new motor or you will need to replaced the whole unit. Sometimes can be cheaper to replace the unit.

So now back on track here, we are going to say the vacuum has great suction and is running smoothly.

Check your hose for clogs, easiest ways are to plug the hose into the utility valve and turn on the machine manually at the switch.
If you do not have a utility valve on your unit (this is where the other vacuum comes into play) plug your central vacuum hose on the end of the shop vac hose. Most hoses are standard and slip right on over the end of a shop vac's hose end (1 1/4 inch end). Turn on your shop vac and feel the suction at the end. It may not be as powerful as your CV but it should be comparable.

If the hose checks out to be free and clear we have a clogged system.

Now lets move to the inlets throwout your home, first we are going to plug our hose into the inlet that is nearest to the unit. If there is little or no suction we know there is an issue either in the distance between the nearest inlet or there is an open/broken valve.

Open/Broken valve (CV will not provide optimum suction with a open/broken valve)
-Plug the hose in and activate unit
-Check all inlets for proper seal, you will hear an annoying whistle or you will hear a gust of air from an improper inlet door closure. (Do this as quick as possible, if it is a clog you are putting strain on your motor, but if you vacuum on a regular basis chances are you know if there are whistling noises or missing pieces of an inlet. If you are missing an inlet door, replace the inlet. If all is checked out to be good, lets go back to unclogging again.

If there is suction at this inlet you know there is no clog between this inlet in the unit, try all inlets from nearest to farthest away. If you try your next inlet and have weak to no suction you found your point of a clog. This is where you will start to unclog your unit.

Take the hose end of your shop vac and insert it into your inlet. Turn the shop vac on and remove the hose quickly to create a seal and lose a seal. You should start to hear items moving through the line.

Now take your CV hose and insert it into this inlet, activate your CV and check suction if there is more suction, your slowly making progress.

Take a flashlight and look into the inlet to see if you can now see the obstruction. If you can, get your coat hanger out and go fishing. It may be easier to remove the inlet from the wall. Your basic valve is safe to remove. If you have a supervalve, do not remove, there is high current installed in the upper portion of the inlet for your power nozzle.

Repeat the Shop Vac suction and stop and the CV suction and stop until you clear your items.

This is going to take a few minutes of tugging between two vacuums. Eventually it will free if it went in, it has to come out. At the end of the day your basically playing tug of war between your Shop Vac and CV. But if all goes to plan, the clog will end up in your shop vac or in your CV unit.

Good Luck!

on May 13, 2014 | Vacuums

1 Answer

No suction


Use the guide at builtinvacuum.com/flowchrt.html to find the issue and solution. Most likely you need to test it without any filter and be sure the bottom of the unit is attached :) To get access to the motors you need to unbolt the very top sides.

Jul 28, 2010 | Broan-NuTone CV350 Performance Bagged...

1 Answer

My central vac is in the basement, I am getting suction in the basement, but no suction on the main floor and the second floor. How do I know if somehting is blocking it or if there is a hole?


That means that you have a clog in the lines where the basement inlets are connected to. They can be tough to get out, you might need to call a professional.

Jan 10, 2010 | Electrolux Central Vacuum

1 Answer

Hush - Insufficient suction


You need to approach this step by step. If you have insufficient suction at all locations you need to check as follows:
1. Hose, drop a coin through from the handle to the wall end, with the hose detached from the wall. If the coin goes through from one end to the other the hose should be clear. If the coin stops it will rattle inside where the obstruction is if you gently shake the hose you will feel it through the wall.Obstructions in hose or pie need to bee **** wards out of the hose or pipe.
2. Vac. Go to the vac itself and see if the onboard inlet has suction. If it does your problem is beyond the vac. If not your problem may be a leak, either a broken inlet, with a cracked or sagging door or jammed hinge, a clogged intake in the vac, or damage to the pipe within the house or a twisted gasket where the pail of the vac secures to the body, or an issue with the motor itself..
3. Take the hose, inlet to inlet and check all locations in the house. I mark a tissue with a number for each inlet and plug in the hose, one inlet at a time. If the tissue makes it all the way to the bucket from each location, that means the branch line for that location is clear. I work from the closest inlet away to the furthest checking for tissues one inlet a t a time. This will help pinpoint location of any blockage in the main line.
4. If you have had any renovations or painting done it is not uncommon to disturb the seal behind and inlet or pierce your piping with a nail or screw. Check for all these and post back to say waht you have found.



Sep 27, 2009 | Hoover S5636 Hush Central System Vacuum

2 Answers

Central Vac does not shut off


Sounds like the relay that is in the central vac unit is stuck to the ON position. When you plug it back in..does it start right up ? If so.. You should be able to disconnect all the receptacle feeds to the central vac unit at the central vac unit to determine which one ( if any) is calling for the vac to stay on.. if none are.. then it is internal to the vac and may be a stuck relay... Hope that gives you some ideas to check...

Aug 28, 2008 | Vacuums

1 Answer

Hayden Supervac 3600


http://geeksquad.fixya.com/ThreadView.aspx?prdid=11860&thid=808510
Hayden Supervac 3600
Posted by kdm0 on Jul 20, 2008
Hi, I have a Hayden Supervac 3600 central vac system in a house I just purchased. The Amber light indicating that it needs regular maintenance is on. I have cleaned and serviced the motor, everything is fine and suction is well. How do I reset the service light? The reset button seems to do nothing. Thanks
Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. I heard of this happening before and you need to refer to the owner’s manual and or to contact the factory or manufacturer of which I will provide to you @ the end of this question. There may be some type of rely switch or board that might need replacing but check with the factory. If you need further help please refer to a local vacuum cleaner dealer in your area. So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.

http://www.haydenvac.com/company/company.html
Customer Service 1-800-461-5300
Company Phone # 1-705-726-3361
Company Fax 3 1-705-726-2186
Thanks, Don the Vac Man
Go Ahead. Use Us.

Jul 20, 2008 | Hayden Industries SuperVac 3600 Central...

1 Answer

No suction on lower level


http://www.geeksquad.fixya.com/ThreadView.aspx?prdid=0&thid=539794
Generic problem for all Vacuums
No suction on lower level
Posted by phil55555 on Apr 23, 2008
Nutone central vac
no suction on lower level second floor fine
ran fish tape but it does not go all the way through,
do i need to take pipe out.

Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure.
Not @ first, try to get a central vacuum cuff and go to each and every inlet / outlet down the basement and put the cuff in the inlet – the central vac should come on and possibly might unclog the pipe, 2nd, try taking another canister type vacuum while the central vac is running and open the inlet door and try to “pull apart the clog in the pipe” – this does work upon occasion if not you can try a plumbers snake – but be careful because the walls of the pvc pipe are thin wall and you don’t want to poke a hole in the pipe or other wise you will have to replace the pipe. The absolute last resort should be to replace the pipe if all other do not work. Feel free to contact your local vacuum dealer in your area or in the yellow pages , or contact the factory @ the phone #’s listed below:
http://nutone.com --- Customer Service
NuTone Inc.
9825 Kenwood Road Suite 301
Cincinnati, OH 45242
In U.S.A. call:
1-888-336-3948 for Customer Service
1-888-336-6151 for Technical Support

In Canada call: 1-888-882-7626

Thanks, Don – The Vac Man
Go Ahead. Use Us.

Apr 23, 2008 | Vacuums

1 Answer

Central vac toast?


Most of these motors, the fan cover is just pressed on, but getting off isn't easy and you don't want to bent it up. Maybe using a flatblade try to knock it off from the edge of it may loosen it enough to pull it off.

Mar 18, 2008 | Vacuums

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