Why won't my brush bar come on
replaced cord and brushes will not come on now
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I have a Dyson DC77 animal + allergy upright vacuum. I assume the design of my vacuum is similar to the DC24. The DC77 is bigger and has added paper filters behind the "ball" wheels. I had the same problem with mine. A small lever switch inside the vacuum "ball," which controls power to the beater brush, is turned on when you move the handle from the vertical position to any other position, and turns it off when you place the handle back in the vertical position. If you remove the "ball" wheels you should be able to see the switch on one side, and the plastic assembly that turns the switch on and off when you move the vacuum handle upright vs. horizontal.
In my case, the beater brush was intermittent. Sometimes it would run and sometimes it wouldn't. Once I disassembled my vacuum far enough to access the switch, I checked the continuity of the switch as I pressed down on the switch. Though it seemed unlikely, I actually found a dead spot on my switch after it turned on, but while pushing the switch lever further down to the final "on" position - same as the vacuum handle in full horizontal position - the switch turned off and then back on again once it reached the final "on" position. I know the beater brush has stalled on a piece of yarn from the carpet, and suspect it may have burned a spot into the switch due to the power surge that occurs when an electric motor stalls out.
On the power supply board inside the "ball" that provides power to the beater brush motor, I unplugged and re-plugged the wires on the power supply board to make sure they were making contact. I ordered 2 switches (one back-up), and reassembled my vacuum until the parts arrived. What's interesting, is that I still haven't put the new switch into my vacuum. My vacuum started working OK after I reassembled it while waiting for the parts to arrive. I know my switch has a bad spot, but it's working. It's possible that the wires to the switch came loose from the motor or motor power supply, and my "playing" with the wires fixed the problem - I'm not sure, but I at least I have two new switches on hand when the beater brush finally stops turning permanently.
One final note, it looks like the lever switch is soldered or welded to the wires. I can't tell for sure, because the switch terminals/exposed wire ends are covered with heat shrink tubing. If you have to replace the switch, you may want a couple of pieces of heat shrink tubing on hand to restore your vacuum to its original condition. You may be able to buy the switch with the wires attached, but all I found was the bare switch, which I bought from PartsDirect.com
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Thanks for the write-up! Your experience is the same as mine, I have the DC65 and it had gotten hold of a thread of carpet, I stopped it, pulled out the string, and then the roller wasn't working (due to no power to the motor, as I tested with voltmeter). So I concluded it was the switch (as I applied 12v to the motor and it worked). Next stop is inside the ball!
Our brush is intermittent, depends on the handle angle. I bypasses the vertical switch and am still having the same issue. Will look at connections on the brush circuit board.
I am really wondering if there could be a frayed wire in the ball pivot area?
Any ideas anybody?
One other thing to check is the bearing on the end of the brush roller. Mine was mostly seized (one of the shields on the bearing itself was missing, and hair had gotten inside).
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+1 for Gary's answer. I have a DC25 that had the same behavior. I overhauled the power switch mechanism more times than I care to remember without luck. After reading Gary's post, I dug into the angle release mechanism down toward the wheels. I found the switch that is triggered when the vacuum is released from vertical, cleaned the contacts with a small file, and reassembled with a little dialectic grease. On mine, the switch was in the levering mechanism, not in the ball. Everything works great now.
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The answers to this question helped me and I thought a picture of the switch near the ball would help. I am pointing to the black switch with a pen in the photo. 3 screws and you can get too it. In the photo you can see the cover removed after the screws are taken out. Also mine looks slightly different as the wheels that hold it upright when stored broke so I just took them off.
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Thanks for the pic! I also have a DC 24 with a beater brush that wouldn't spin. When I tested the leads coming into the switch shown in your picture I found that they showed 10 volts when OFF, and zero volts when ON. This led me to infer that it was a logic problem. I replaced the printed circuit board (about $30) in the "foot" of the unit and it now works fine.
PS - I first investigated for belt slippage, but it's a toothed belt, so this does not seem like a valid issue.
Per your tip, I removed the circuit board in the foot and cleaned with rubbing alcohol. There was some visible buildup of something that I cleaned up. And it worked! Brush is running again.
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You might have a bunch of hair or something tangled up in their. Look at each ends of your brush. Get some scissors and cut the problem off/out. Or maybe the belt came off PR broke.
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no it seems to
be the switch .where do I get a fix for switch?
where is the belt?
On my DC25 on the bottom on the beater brush there is a single slotted screw on one side you remove which then allows you to remove the entire end and slide out the beater bar for cleaning (awesome design Dyson:). to get to the belt is a bit harder you need to remove ~ 9 torx screws on the bottom and then take apart the plastic housing around the beater bar in there you will fond the motor and belt.
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THE JOHNSON DF651(2)LG DYSON DC24 Vacuum Cleaner BRUSH BAR MOTOR USED IN THE US MODEL OF THE DYSON DC24 ONLY LASTS ABOUT A YEAR! NO REPLACEMENT MOTOR FOR THE US MODEL IS AVAILABLE, ONLY A 220- 240 VOLT DC IS AVAILABLE IN THE UK. IT IS NOT COMPATIBLE WITH THE US MODEL DC24 AND CAN’T EVEN BE SHIPPED TO TH US. THIS IS A DEFECTIVE MOTOR AND DYSON OUGHT TO REPLACE IT FOR FREE UNDER THE LEMON LAW! (AS IF THERE WERE SUCH A LAW) THIS JOHNSON MOTOR IS JUNK AND THE ONLY WAY TO REVIVE A DC24 WHERE THE BRUSH BAR DOESN’T TURN IS TO PURCHASE A NEW DC24 CLEANER HEAD ASSEMBLY!
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I agree. The Dyson dc24 is a total waste of money imo! Plastic junk?
We bought it new some years ago and the brush head bar gave up the ghost but luckily it was still under guarantee.
New replacement lasted just over a year and I then bought another brand new replacement which again lasted about the same length of time. Bought another new replacement in May 2020 and it's just died again today!!
Dyson should be ashamed of themselves and I won't be buying another replacement head or another Dyson cleaner!
User knowledge first, I use this dyson rarely and always forget this:
I have an older Dyson and to get the brush bar going you just hold down the base (with your foot normally) and move the handle down out of the upright position. Voila, the brush spins. If you do that with this one, the bar does not spin. This one requires you to start it by depressing the red bar at the rear of the base (with your foot). I have had to relearn this at least 3 times. :)
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I have a Dyson Big Ball. My beater brush turns only when I push forward; not when I pull back! Is this right?
My brush stopped working on my DC77 tried all the tricks and nothing worked. Let it set overnight and the next day it works again. I guess it was just tired
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I know this is an old thread but I found it when I had the same thing happen on my Dyson Multi Floor 2. Brush bar would come on and off intermittently. My solution ended up being a little differant so I wantes to share in case anyone else came across it. When you remove the brush head, there is a grey clip and the whole thing slides off. Part of that is a plug assembly on top. On my machine the female side of the plug that stays with the main machine, the contacts inside had come loose in their holder. There is a clip of sorts that holds them in and it had come unlatched. All I had to do was remove one screw on either side of the plug to slide the cover back and gain access, pull the plug out a bit, push back in and turn the contacts so they were fully seated and rotated so the clip's ears held them forward, press the clip back down with a pair of pliers and reassemble. My wife tested it out and it seems to be working perfect now. Wish I had tried it before spending $300 on a new Shark Cordless, ???
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My mother-in-law's machine also has this problem. Machine will suck but beater bar will not turn. Beater switch (grey) is sticking down. I've disassembled the plastic housing to expose the two actual switches (power and beater on/off). Underlying beater switch works ok mechanically (clicks down/up), but beater bar still dead, suggesting an electrical fault. Removed beater bar, not jammed. Looks like a visit to a Dyson service centre.
由 padh98 完成的