Chosen Solution
The battery is fully charged. We press the trigger button and the the hoover works for a few seconds and then stops. It does this consistently
If your vacuum suddenly turns off during use, see the Dyson DC58 Shuts Off While In Use problem page for possible causes and solutions. I suspect it is the battery protection circuit cutting in. This circuit monitors the battery voltage. After the motor is first started, the battle voltage will drop due to a load of starting up the motor. The circuit allows a second or so for the voltage to recover. If the voltage does not recover in this period, it shuts down the motor on the assumption that there is a fault that is drawing too much current and will cause the battery to explode into flames. As batteries age, their internal resistance increases and they take longer to recover from the startup load. Things like cleaning the filters etc. will reduce the startup load and this will temporary solve the problem. As you can see from the first few seconds the motor runs OK, there is nothing really wrong with the machine (or in fact the battery except that it is slowing down a little in its middle age.) The real problem is the design of the protection circuit. It is too simplistic in monitoring approach and is causing thousand of Dysons owner to replace their batteries when they still have years of use still left in them. Shame Dyson, shame!
Most likely a blockage problem. The motor is set to turn off if uses too much current for protection. I would clean the filter and dismantle any accessories, espically any spinning brushes, as these can get clogged easily.
“&&^& DYSON!!!” Paid a lot of money for a Peace of $@$* product!!
Same problem. It seems to involve the button itself. Sometimes I can move my finger to a slightly different area of the button and it stays on a little longer. Very frustrating. I love my Dyson 35 but want to through it out the window when it acts up.
The filter needs cleaning. Try running it without the filter in. If it works fine, the filter needs cleaning, even though it looks clean. This happened to me.
Bought the very first hand held Dyson had the same problem was told there was a fault with the on of button as out of warranty they gave me a small discount to purchase the new model as the problem had been rectified bought it ,out of warranty same problem never a hand held Dyson again
We had the same issue with a relative new (under warranty) received battery. Cleaned the filter, but it intermittently did shut off when using. What helped was removing the cyclone from the motorunit. Follow theses steps till step 7; Dyson DC58 Cyclone Replacement Then remove the filter if not done already and let the cyclone soak in warm water with some soap. Flush the cyclone, until water comes out clean. Let it dry and re-assemble.
Worked for our DC58
I phoned Dyson and told them about it. They told me to remove the filter and clean the metal contacts. This solved the problem for me.
My Dyson absolute works fine on low power. But as soon as I press the button for full power it cuts out.
I have found that putting it back on the charger for a few seconds makes it usable again on low power. But it will cut out again if put on full power.
I bought this Dyson because I was impressed with the power. But it was very short lived.
Very disappointed in Dyson and will not be buying again. They need to sort this issue out or stop selling them !
Update (11/29/2020)
Forgot to say…my son bought one and has the very same problem.
My Dyson , when fully charged, cuts out after 20-30 secs. Putting it back on charge for ~10 secs usually allows it to run normally afterwards. The cut outs are irritating and does seem to be an issue that Dyson could address.
If it’s cutting out then you have to take it apart and clean everything with lab-quality alcohol (Isopropyl Alcohol Lab Grade Rubbing IPA Disinfectant). Unscrew the battery and remove it.Remove all extension tools, the filter, and the dust collection chamber (click to open the bottom and hold it down, pulling the chamber down).Clean the chamber/bucket, the suction head (remove the roller, etc.), pour alcohol into where the filter should be, and shake it. Use cotton buds for hard-to-reach dirt and a toothbrush for the main cleaning.Once everything looks brand new and shiny, let it dry for a few hours.Turn on and boom it explodes - joking, it will be as good as new (sorry Dyson). I do this every year and have no problems.
Pretty sure it is what the fellow upthread surmised, it is some kind of battery protection that is based on voltage sensing or heat sensing that goes awry. Don’t think a new battery or cleaning will help. Best thing is to buy a new vac rather than waste money on a new OEM battery which is close to half the price of a new unit of an older model on clearance.The non OEM batteries use cells that have been rejected by quality control and they are assembled haphazardly without any control circuitry (I opened one up) to achieve the low prices, I would not trust them to last very long.
Mine kept cutting out and we cleaned the filters - no effect - then used a compressor to blow through all areas - loads of dust came out! Works fine now. If you don’t have a compressor - take it to a garage with an air hose. You maybe need a cheap adaptor that is used to blow up balls.
use sandpaper/steelwool to clean the contacts ifor trigger and motor. fixed mine 2 years ago with this method and neighbors the other day. mine was well used when i had the problem, neighbors is literally brandnew condition. he tried to get warranty, i suggested just buying a new one and sending back this, but cleaned the contacts and perfect.
I eventually stripped mine down completely, and cleaned everything when rebuilding.the machine was as good as new. Then I got to thinking it must be the safety cutout in the battery. I found a battery online with a greater ampage at only £16. So as a last resort, I thought it was worth a try. Eureka ! It worked ! I don’t think the suction is quite as powerful. But the main thing is that it does not cut out. I have not tried it on full power, as a dyson rep in curry’s once told me that, it is that which causes a problem with the battery cutout in earlier models.
I unplugged the charger and also wiped the tip that plugs into the charger port and it fixed it. I’m thinking the charger needed reset or I might need a new one but so far it works again even on max. So I think it’s the charger.
Our v7 motor head cut out after a few seconds on max, very annoying! Stripped it down, cleaned everything changed the filter, no difference. As suggested, when it cut out I plugged it into the charger for a couple of minutes & bingo, works fine on max. Shouldn’t have to do this, but thanks for the advice.