No hose suction

Is the suction strong or weak?
Have you cleaned or replaced the filter?

A plugged filter will restrict air flow and cause vacuums to lose the ability to work properly.

Sounds like the section from the hose to the bag may be plugged. Or you may be losing vacuum due to a leak in the hose. Hope this helps.

your cyclone assembly may need to be striped down and cleaned also remove the exhurst filter located under the bin.

Hi there, it's Jack at Dyson.
If your DC40 doesn't seem to have suction through the wand but picks up as normal on flooring, it's likely there's a blockage in the wand or hose. To locate and remove any obstructions, please follow the steps shown in our online Support guide:

http://www.dyson.co.uk/support/dc40/dc40-multi-floor/my-machine-is-not-working/machine-not-sucking-up-well/check-the-wand-and-hosedc40


It's also worth giving both filters a wash as shown in the video below - in normal use this should be done at least once a month. Use cold water without detergent and at least 24 hours for the filters to dry completely before replacing them.

I hope this helps, but if you'd like any further assistance please call our freephone Helpline on 0800 298 0298 (UK), or 1-866-693-9766 (US).

Best wishes,

Jack
Dyson Online Customer Support
http://www.dyson.com

A tear in the hose will only affect pick up through the hose when using it to clean furniture, stairs, and such. It will have no effect on the carpet cleaning operation. If the hose cannot be replaced for a while, black electrical tape is one solution to seal the crack.

There are six different reasons a vacuum can lose suction, a plugged vacuum hose, bad motor, full vacuum bag, or cracked or damage hoses. Purchasing a vacuum cleaner can be a costly expense while repairing the suction on the unit can be virtually free. Most suction loss problems on a vacuum can be easily fixed or remedied with common house hold tools and very little technical expertise.
If your vacuum cleaner losses suction, the first and easiest solution is to check the bag. If the vacuum cleaner bag is full suction will be greatly reduced and the unit will become ineffective. A vacuum cleaner works by passing air through the bag fibers leaving dirt and debris behind inside the bag. If the refuse bag becomes full, airflow is restricted, limiting the amount of air passing through the vacuum bag resulting in loss of suction. When replacing the vacuum bag always consult your owners manual to insure that the vacuum bag seals with the vacuum inlet hose. If your vacuum cleaner bag is not tightly sealed to the vacuum inlet hose you will decrease the air flow through the bag resulting in loss of suction.
The second and sometimes most common reason for loss of suction on a vacuum cleaner is a plugged vacuum hose. If the hose becomes plugged, air flow will become restricted. To unplug a vacuum hose detach it from the machine and inspect the inside. If there is a restriction in the hose, remove it with your fingers and replace the hose onto the unit. If the hose is long and the debris is hard to get too, a broom handle or other long object can be passed through the hose to dislodge the debris. Most vacuum cleaners contain more that one suction hose, so make sure to check each one by process of elimination. Another area that can become easily plugged on a vacuum cleaner is under the lower base of the unit by the roller brush. Large debris can get caught in this area and restrict air flow to the hose.
If your vacuum refuse bag is not full and the suction hoses are not plugged the next thing to check is the condition of the hoses. Many hoses are made from plastic which can easily tear or crack. If your vacuum cleaner shows signs of wear or are cracked they need to be replaced. Even the smallest hole in a vacuum hose can leak enough air to greatly diminish the suction potential of your unit. Replace your vacuum cleaner parts with OEM parts from the original manufacturer to ensure the tightest fit.
Most vacuum cleaners contain filters. Filters are used as a last line of defense to remove dust and smaller debris particles before the air is recycled back into the environment. If vacuum cleaner filters become dirty or plugged they also can decrease the amount of air traveling through the unit. Some filters can be easily rinsed with water whereas others need to be replaced. It is important to check your owners manual before rinsing a vacuum filter.
The last and probably least common problem for a vacuum cleaner to loose suction is a bad or failing vacuum motor. Over time vacuum motors lose power due to worn carbon brushes or long term damage. A vacuum cleaners worst enemy is moisture. If water or moisture is sucked into the vacuum motor it will greatly diminish the amount of suction the unit has. Replacing a vac motor can be a costly and time consuming ordeal. In some cases, replacing a vacuum motor can outweigh the cost of buying a new vacuum. Vacuum suction is measured in water lift which can easily be measured by using a water lift gauge. If the water lift measured in inches, falls below half the original water lift specifications for the unit, it is time to replace your motor. Most vacuum cleaner repair shops carry this type of equipment and can easily tell you if it is time for a new vac motor.

Greetings,

A few more things that you can try on your SteamVac. First remove the dirty water solution tank from the machine completely. You should see where the solution tank was just sitting, a plastic casing with a whole in it. This is actually where the suction from the motor goes into. Turn the machine on and feel the hole there for any suction coming out. Did you feel suction coming from the hole? If yes, then your issue is going to be something with the dirty solution tank, because without the tank it's sucking fine. If you didn't feel any suction from this hole, it may indicate that there is something more serious that needs to be taken care of.

One other place you may look on your machine (as long as the upholstery hose for stairs and furniture is already attached to the machine, and you don't have to hook anything up to the dirty water tank to use the attachments) while the dirty solution tank is out of it, is where the attachment hose makes connection with the vacuum. If you recline the handle down while you have the dirty water tank out, look in the back of the handle housing for a hose that enters the housing 3/4 down the housing. Now follow the hose on the inside of the handle not the outside, follow it up to the point where it goes into the neck, near where the suction hole is. Right at the end of the hose, right before the hose cuff, is this ripped, or damaged here?

Please feel free to request a clarification to this repair if you still need addtional help. If you can leave me the model number exactly that would help me help you, lol. I hope that this was helpful to you. If this was helpful to you, may you please click the helpful Thumbs Up Icon in the lower right hand corner of this repair?

Thank you so much,

Chris J.

You have not stated which model vacuum you have. Bipass vacuum have a bipass compartment which is under drive unit. Make sure there are no cracks around housing as this is where you vacuume is created. In order to have vacuum you must have airflow, in assences suction. No air flow, no suction. If the airflow is deverted somehow suction will stop. Your filter, your bag are all sources of air flow. Clog either and you lose suction. Start with loss of air, being cracks in housing,bag or filter

if you have cleaned all the filters, there are two you need to wash and the hepa on the back may need to be changed, but the hose is probablly clogged. You can usually remove the hose ( twist it where the hose connects to the machine ) and use a broom stick to try and push the clog out.

Did you put the duct in for the hose? It goes in front of the tank, take out the duct (#3)that is there and put in the duct that is on the end of the hose. Is there a slit somewhere in the hose, if so you will loose suction.