DC40No power supply at terminal connector to power head

How to Identify and Fix Common Vacuum Problems ?

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Most cases of a jammed or stuck brush bar are quick and easy to fix, simply pulling the debris gently from the brush bar. Alternatively, if you need to clear a problematic blockage, you can take the brush bar out of the housing easily, for quick maintenance.
One of the first things to do when your Dyson vacuum cleaner keeps starting and stopping is to empty the bin. It may be full, or the machine may simply perceive it as too full to continue working. Dyson vacuum cleaners require constant airflow through them to work, and a full bin can stop this from happening.
To reset the Brush bar press the Brush bar control button twice or switch the machine off and back on. Please note: In normal use, the Brush bar automatically turns off when the machine is upright and automatically turns on when the machine is in the vacuuming position.
The brush roll or its bearings may be clogged with hair, threads or dirt. Make sure they are clean and the roll spins. The belt may also have slipped because it was loose. Check the fit of the new belt when it is installed.
Brush Head Bearings Are Clogged or Have Failed

These are symptoms of bad or dirty bearings. You should remove the brush roll or rolls from the vacuum. Check to see that the bearings at the end of the brush roll allow it to spin freely. Make sure that there is no hair trapped in the bearings.

The rotary brush in the cleaner head of your Dyson V7 spins at high speeds and helps to beat and dislodge the dirt out of your carpets.
If your vacuum`s brush bar is not turning, the bar may be clogged from hair and other debris. Ensure that the brushbar button, which is gray and located next to the power button, is turned on. If this is not the issue, then the brushbar itself may be damaged or stuck.
If you find that your machine is turning off intermittently, the filter in your vacuum is most likely full and covering the ventilation system. Remove the filter, then empty and wash it. Allow the filter to dry for at least 24 hours, or until it is completely dry.
if your dyson DC 24 has a faulty brush bar motor now sometimes the brushes on these in to suddenly stop going around the first thing to do is to look on the side the brush bar housing and click this reset switch.
Press the brush control button located next to the ON/OFF switch to turn the brushbar off for vacumming delicate rugs, looped carpets and hard floors. Press the button again to restart the brushbar for vacuuming carpets.
Inspecting the Vacuum Commutator for Motor Brush Problems

Test that by turning the motor off and pushing on the center shaft, the armature. If it has any play, besides spinning, then replace the motor. If solid then replace the brushes – motor brush replacement instructions.

If the roller brush is not spinning, it cannot pick up dust. One reason could be that the power button is not set to position II, which runs the roller brush. If the button does not work, here is the link to the power button replacement guide. Another reason is that the roller brush could be broken.
If your machine has a clutch, the reason the brush bar isn`t spinning is unlikely to be a snapped belt. The clutch allows your brush roll to be turned off (for certain types of hard floors, etc.). First you should check if your brush bar is turned on. Try to turn the knob one click clockwise to the “auto” position.
Dyson`s Mini motorhead is designed with a motorised brush bar that spins at up to 3500rpm to remove ground-in dirt but at just 144mm wide, the tool is perfect for removing stubborn dirt from mattresses, upholstery, stairs and other small spaces around your home and car.
Most problems arise because of a blockage – if not a dirty filter or cyclone unit, then something could be caught in the wand or the brush bar. Once again, the lack of suction could be caused by a dirty filter or a blockage somewhere in the vacuum`s system.
You may visit a Dyson Service Center to have your Dyson machine serviced and/or repaired. If you are unable to visit a Dyson Service Center, you may ship your Dyson machine to Dyson for service and/or repair.
Hold your brush bar under cold tap water and gently rub to remove any lint or dirt. Stand the brush bar upright and leave to dry completely. Make sure your brush bar is completely dry before refitting. The cleaner head housing is not washable and should only be wiped over with a damp lint-free cloth.
If your vacuum cleaner keeps turning off, this could be due to the following reasons: Blockages – check the hose and head for any obstructions. Filter – always check your filters, if these are clogged this could be causing the vacuum cleaner to work harder and lose suction power.
Hot environments speed up battery aging. So it`s best to avoid cleaning the car in hot weather or leaving your vacuum in rooms that experience direct sunlight for prolonged periods. The same goes for cold porches and garages in winter.
According to Dyson the belt should last the lifetime of the machine. If you are having problems with the brushbar rotating here is an interactive link which shows how to check the brushbar and how to reset the cleaner. http://www.dyson.co.uk/support/dc24/dc24…
The complete version of the Airwrap comes with both a soft smoothing brush that`s gentle on the scalp and a firm smoothing brush for thicker, frizz-prone hair.
Can I exchange one Dyson machine for another? For purchases made on Dyson.com, Dyson does not offer exchanges unless the machine was damaged in transit. Machines are covered under warranty service with repair and servicing support.
Give it a break

By letting the battery run down to empty at least once a month, you`ll help to prolong its life.

If your brush is scratching your floor, or not cleaning as well as it used to, then you may want to replace your brush bar.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My model F5906-900 — problem is the brushes have stoped working… I pulled the brush assembly out by holding the two tabs, and all seems clean and the brush assembly rotates easly… onced the brush assembly is removed. What I did notice is the female driver slot (found in the main assembly unit) that drives the brushes seems stuck..Is that normal when the machine is not hooked up to power? How can I get the brushed going??? it is a good machine, but the brush options is important too it’s ab
ANSWER : (1) Assure the Brush Control on the hood is NOT set to the OFF position.
.(2) Remove the brush assembly by pulling/unlatching it from base on each side.
.(3) Does one of the brushes have the drive pin present? It should be about ¼ inch square, and two inches long. It attaches the brushes to the drive mechanism.
.(4) Remove and clean the intake filter. One the base of the cleaner, behind the brushes, squeeze the two red abs together and pull the panel down to access the screen. Clean the hair/debris off the screen and reassemble.

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Caught shoe string in roller brush, now will not rotate roller BR
ANSWER : Belt maybe streched and hardened from heat replace and try again.

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Noise My Dyson DC08 is making a loud, rough, vibration/noise that seems to be coming from the from the rotating brush housing. I replaced the old belt which was several years old and slipping. When I run the motor with the new belt removed the machine sounds normal. The bearings on the rotating brush seem to be running smoothly when turned by hand both when out of the brush holder and when installed in the machine. I can’t find anything rubbing on the belt or rotating brush. I applied a bit o
ANSWER : Hi there, it’s Jack at Dyson.
.I’m sorry to hear you’re having difficulty with your Dyson vacuum. From your .description, it sounds like the model number you’ve supplied may not be correct, .as DC08 is a cylinder vacuum which doesn’t use a belt-driven brush bar. So we .can confirm exactly which model you own and take you through some quick .diagnostic checks, I’d encourage you to contact us directly. You can reach our .experts by calling 0800 298 0298 (UK), or 1-866-693-9766 .(US).
.We’ll .look forward to hearing from you.
.Best .wishes,
.Jack .- Dyson Official Online Customer Surpport
.http://www.dyson.com

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Dyson 18 slim the rotating brush bar will not rotate. Was working fine until I got the edge of a tablecloth caught in the brush, pulled it out ok but now the brush will not rotate fast, but will rotate by hand . Any ideas.
ANSWER : If the DC18 has a proteted belt then it will have to be replaced by a Dyson engineer or repairer. If the cleaner has a removable sole plate where the beater bar is then remove it and replace the belt – sounds like the belt has snapped and needs to be replaced. if your DC18 is still relatively new it should still be under guarantee.

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Now that I just fixed my Lux Legacy canister vacuum, I need help on my other Electrolux Regency Series upright! The vacuum works fine but the rotating brush does not work and the brush motor does not turn on. Tried cleaning the brush and hitting hte reset button to no avail. This upright has a triple setting switch and I checked the each of the wires seem to be attached. Tried rotating the brush by hand and it would not budge. Was going to “encourage” the brush to turn with a set of articula
ANSWER : There are a couple rectangular holes on the bottom of the power nozzle, beside the wheels. These have tabs in them that need released with a standard screwdriver.
.rogerpotts_10.jpg.Once they release, turn the vacuum over and lift cover of power nozzle at the back. This pulls the front of the cover out of the lip on the “bumper”.
.Once this is done, you’ll need to unscrew the screw at each end of the brush. Lift the brush out and thoroughly clean it, including the ends.
. rogerpotts_9.jpg.
.Check the wiring to make sure they’re connected to the terminals of the motor. Also, check the belt for wear and tear. These belts can last for five years or more, but if it looks bad a good time to replace it is while you have the power head apart.
.When reassembling the vacuum, ensure the belt is fitted properly around the motor shaft and brush.
.Insert the front of the cover first, ensuring the edge fits neatly beneath the lip on the bumper all the way around. It takes a little manipulating to press the back into place. Make sure both tabs click into the locked position. Turn the vacuum over and reinstall screws. Try to rotate brush by hand a few times.
.At this point, plug the vacuum in and turn it on. If the power head doesn’t run, press the reset button. If the power head motor still doesn’t run, it could be due to loose or disconnected wires that lead to the reset switch, a bad reset switch, or even a bad motor. The vacuum needs to be taken to the nearest Aerus Electrolux store for further diagnosis and repair.
.
.http://www.aerushome.com/storelocator/

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My Hoover Windtunnel Mach 6.9 brush roller quit working. Upon investigating I found that the idler arm pulley was broken so I managed to replace that. Before putting the cover back on I see the control knob for the roller brush moves a plastic piece left or right to activate/deactivate the brush roller. I don't know where this plastic piece connects. It appears to me that the idler are when raised creates tension on the belt which drives the roller. I'm at a loss trying to figure ou

Hi, I have not owned my electrolux pronto 2 in 1 for very long but the roller brush has stopped turning. The handheld part works and the green light is on. I have done a thorough cleaning of the roller brush and all other removable parts. What might be causing the roller brush to not work? Thanks, Jen
ANSWER : Check the end cap bearings … and replace the belt even though it may not be broken. Put a drop of sewing machine oil (no more) in each end cap bearing.

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Hoover steam vac, brushes won’t rotate, have cleaned filter by brushes, removed brushes and they rotate okay when off steam vac, tried to ajust level for carpet cleaning and brushes still don’t move
ANSWER : There are three things to check when experiencing ‘no spin’ on the cleaning brushes. 1) Check the small pull out filter screen under the machine. It must stay clean for air to pass to the turbine which powers the brushes. 2) Check that the long shaft on the brush assembly is not broken off. This shaft inserts into the turbine motor and powers the brushes. If you’re handy you can replace just the long shaft brush rather than replacing the whole brush assembly. Look for the brush on Ebay 3) If you’re handy you can dissemble the machine and inspect the turbine motor which powers the brushes. In all cases the bearings seize in the turbine. You can often free them up and re-lube them to get more service from them or simply replace the turbine assembly. Don’t throw your Steam Vac out because the brushes no longer turn…you can fix it!

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