Question about Nilfisk Family Vac Bagged Canister Vacuum

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My filters? need cleaning

My vacuum cleaner (Nilfisk) is stopping as it is overheating, how can i clean the filters? I have tried but it still has the same problem.
I have taken out the square felt layers and shaken them and i have taken out the pleated plastic one but it doesn't seem to have made any difference at all.

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Most likely the hose is blocked, drop a coin down it to confirm. You are best to replace the filters, they are not very expensive; though they are not likely to be the cause of your nilfisk over heating

Posted on Feb 04, 2009


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How to maintain a Nilfisk Combat vacuum cleaner.

The Nilfisk combat is an excellent value vacuum cleaner, to operate at it's best though you will need to look after it.


This is really simple, first remove the hose from the front of the vacuum cleaner and drop a medium sized coin in one end and then see if it drops through easily. If it comes through with no problems then you should check your filters The Nilfisk Combat has 3 filters which need to be checked.

The first filter is at the back of the machine, there is a small door, open the door to reveal the filter. It is unlikely to be causing suction loss but check it and if it has a lot of dirt on it buy a new one.


The inlet fitler can only be seen when you remove the dirt chamber, take out the chamber and look from the front of the machine to the back. There is an oval shaped hole and a small washable filter inside - give it a quick brush off and reinsert.

The Hepa Filter - this is going to be the issue 99% of the time. Now that you have the dirt chamber removed you can access the filter. Hit the button that releases the bottom trap door and let the dirt out (over a bin so you don't mess up the floor). Now you have to take the top part off by twisting the bin Lastly take the hepa filter off and check it over.


There is a shroud that slides off to reveal (normally) lots of dirt and muck caught in the folds of the filter Its a messy job...but you really have to do it if you want your vacuum to work well.

You can try to tap it out on a piece of newspaper or over the bin. Using a brush will work well too. Basically though it needs to be done every few times you vacuum or the dirt will just get lodged in there. If you have cleaned it but there is still noticable built up muck in it the unfortunately it's got to be changed or both have this filter available.


The dirt canister has a built in filter cleaning function. It is only really usefull if you do it every time you empty the bin though. In the top of the canister is a big dial - really simple to use turn that thing a few times every time you empty the vacuum. It does not take the place of removing the filter and tapping or brushing it out though!.

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1. Remove the hose from the vacuum from both ends.
2. Use a broom stick to gently loosen and remove any clogs from the hose.
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Hi there SmartAlec from here. I am a nilfisk vacuum agent and although i havent actually worked on one exactly the same as yours there are no Nilfisk with any kind of washable filters at all. I think you will have to replace it. If you are in Australia i can check out the cost of replacement filters for you just drop me an email with the exact model number.
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Hi there SmartAlec from here.It sounds like a blockage of some kind. The best way to find it is to set the machine up for normal vacuuming and remove one component at a time until the suction returns. eg turn on and feel suction under floor head - not good? then remove the rod, then the hose.
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