Question about Eureka 1810 Central System Vacuum

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Eureka Cantral Vac

The unit turns on, but there is no suction until I engage the motor, and then it it limited.

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Clean out filter

Posted on Feb 19, 2009

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Eureka Smart Vac The Boss no suction from either setting. I have taken it apart trying to see if it was clogged but it isn't. Checked the hose it is not sliced.


Remove the bag cover and feel for suction above the motor. If their is suction there then check the bag compartment is sealed. You can drop a coin down the hose to check for blockages all the way to where the bag attaches.

Aug 16, 2013 | Eureka Smartvac 4870 Bagged Upright Vacuum

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

I have no suction on my Eureka Smartvac. I cleaned the inside, it had been attached incorrectly so the inside compartment was full of lint, changed the bag but still no suction. My husband unhooked the...


Tear apart all hoses and make sure no clogging, also take apart to expose motor and make sure their is no dust on motor, this will cause symptoms you are describing, another thing check Impeller fan and make sure the fan is running and not blocked if fan is not working then will need to replace Impeller.

Aug 16, 2013 | Eureka Smartvac 4870 Bagged Upright Vacuum

1 Answer

I have a Eureka 'The Boss Smart Vac'. The beater


Yes, you need to replace the belt. You should actually change this belt every year. Here is a link to the belt you need and the manual which has instructions:

Eureka The Boss Smart Replacement Belts

Owner's Guide (3,666K download)

Dec 09, 2009 | Eureka Smartvac 4870 Bagged Upright Vacuum

3 Answers

The suction on my eureka optima stopped working but the roller still works, what might i do to fix it?


Hi there. Most suction problems are due to a blockage. Start with the base and look carefully for debris that is stopping air flow. You may have to remove the base plate to get to the problem. I am including a link to the manual for your machine. look on page four so see how to remove the base and check for blocked airways. http://www.eureka.com/service/manuals/75287_eng.pdf

Aug 19, 2009 | Eureka 431A Optima Bagless Upright Vacuum

1 Answer

Eureka 4870: Brush roller turns even in hose setting.


You either have the wrong size belt, most likely too small, or you have installed a new belt incorrectly. When you open the cover on the bottom of your vac, you will see the pulley that moves as you flip the switch from floors to carpet. The belt does not go around this pulley. When activated(carpet) the pulley puts tension on the belt causing it to turn the roller. When switched back to hard floors, the belt looses tension allowing motor to cause suction but disabling roller. Also, the dial on top of vac is only to direct suction, not for disabling roller

Jun 21, 2009 | Eureka Smartvac 4870 Bagged Upright Vacuum

2 Answers

Eureka Optima vacuum has suction at the hose but not at the floor. I took out the filter and it still isn't suctioning so I don't think it is the filter.


it sounds like you have a plug. check where the hose goes into the back of vac. it should have a clip remove this and see if there is a plug there

May 18, 2009 | Eureka 431A Optima Bagless Upright Vacuum

2 Answers

Eureka Enviro Vac Model 4470 Not Sucking


First, check to see if there is suction without the hose on the base. If not, and there is no blockage, the problem is likely a damaged impeller, the small fan that makes the suction. That will have to be replaced.

May 21, 2007 | Eureka Smartvac 4870 Bagged Upright Vacuum

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