DC25 vacuum not picking up just moving dirt around. Hose stretched to max to get suction. What could problem be?

Check the hose connection for leaks and filters. Here is a tutorial video on the DC25 possible loss of suction -
How to fix loss of suction in Dyson DC25 vacuum cleaner

Hi Peter, it's Jack at Dyson.

It's normal to experience a certain amount of resistance from DC25's hose due to the vacuum's very powerful suction. However this shouldn't feel excessive, and we would expect the hose to relax after a period of use. You can expedite this by stretching the hose out to it's fullest extent a few times.

It's worth keeping in mind that to make the hose easier to use when cleaning in confined spaces, you can remove the wand and attach the tools directly to the hose cuff:

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If you'd like further advice, please give our experts a call directly on 0800 298 0298 (UK), 1-866-693-9766 (US), 1-877-397-6622 (CA) or 1800 239 766 (AU)

Sounds like you have a tube misaligned. Take the tubes that lead to the filter off and put back on. Most likely the solution

My question is what kind of dirt are you trying to pick up. Regular dirt does not plug up in twenty minutes. If you see dirt flying around that tells me your vac hose or parts that have a suction is plugged up. Take the hose and hose attachments off and make sure there is no dirt inside.If they are clear check the inside of the vac for dirt as well. Check your filter which is back of the vac bag as it may be plugged as well. The filter should come out to be cleaned.

see this causes and fix it. God bless you
Air filter:
If the vacuum cleaner won't pick up dirt and has no suction the air filter might be clogged. Remove the filter and either clean or replace it as needed.
Exhaust Filter If the vacuum cleaner won't pick up and has no suction the exhaust filter might be clogged. Remove and clean the filter, replace it if its torn or damaged.


Vacuum Hose If the vacuum cleaner won't pick up and has no suction the vacuum hose might be clogged. Remove the hose from the vacuum cleaner, stretch it out straight, shine a bright flashlight in one end and try to see light through it. If no light can be seen, use something to run through the hose and free up the obstruction.
Vacuum Bag If the vacuum cleaner won't pick up and has no suction the vacuum bag might be full. Clean or replace the bag as recommended by the manufacturer.

Dust Cup AssemblyIf the vacuum cleaner won't pick up and has no suction the dust cup assembly might not be installed tightly, or it might be cracked or broken. The dust cup must seal tightly in order to produce the right amount of suction. If it is cracked or broken, replace it. Most glues and adhesives will not successfully seal the crack.
Blower Wheel If the vacuum cleaner won't pick up and there is no suction, the blower wheel might be jammed or broken. Check the blower wheel to be certain it turns freely. If it doesn't, check to see if there is anything rubbing against it. If not, but it's hard to turn, the motor is most likely the problem.

Your problem is posted in the wrong category, so probably no-one reading here (Telescopes and Binoculars etc) will have the solution.

I do know that Dyson maintains Tech Advice lines worldwide. Look here

http://www.dyson.com/


select your region, then look for a Tech Advice number you can ring

Was it picking up dirt before?
If so then perhaps the suction hose has a buildup of dirt/fluff somewhere along it. If a large piece of material went up the hose it often sticks and small bits gather around it to cause a complete blockage. Can you take the hose off and check? Or shine a torch down?

That means that your belt is worn, stretched or broken. You need to replace the belt. You can get replacement belts and view the manual:

Dirt Devil Dynamite M084600 Belts

Download the Manual (PDF)

If the suction is strong through the hose and its still not picking up, then something is definately clogged despite the strong suction and rolle brush. Check all inspection tubes including the main dirt channel behind the roller brush. You may find something that keeps getting in the way when dirt or hair is trying to bypass through.

Either it needs a new belt, they stretch and break, then won't turn the brush roll. The dirt inlet by the brush roll is clogged, the hose may have a clog in it, filters are bad. If the hose comes off on one end, is there suction there, is so then the clog is farther down. If no suction, then the clog is in the hose or filter.