th air compressor)sensors are clear ,newly installed well lubricated on ends of brush and beater bar, new battery. it seems like the wheel tracks may be dragging . i have cleaned and lubricated where i could on them but can’t find a way to totally remove and inspect wheel tracks.
iRobot Roomba 4000 Bagless Robotic Vacuum

How to Identify and Fix Common Vacuum Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced Vacuum Technicians :

Error 2 means the rubber brushes in your Roomba are clogged and need to be cleaned.
Check if any obstructions are blocking the suction inlet. Empty the dust collector and clean the filters with a vacuum cleaner or a cleaning brush. Replace the filter/brush to see if the suction becomes stronger. Check if the filters are wet due to water or other liquids on the floor.
Besides regularly cleaning the brushes on your Roomba, you`ll also need to replace them from time to time. iRobot recommends replacing the two main brushes every six to twelve months.
One of the easiest ways to increase vacuum cleaner suction is to empty the dust bag or container. Dust containers need to have enough space for airflow, otherwise, they could get clogged and have less suction power. Regularly check your dust compartment and empty or change it when it`s already 70-80% full.
If you get a more affordable model, like Roomba 675 you can expect a lifespan of up to two years. Go to the higher-end, like the iRobot j7+, and our research and testing suggest you can get five years plus of cleaning with proper maintenance.
Made by iRobot, these robotic vacuum cleaners use sensors to detect walls and items in a room, becoming smarter the more frequently they clean.
Shake off debris by tapping the Filter against your trash container. Then, replace the Filter. Note: Filters are not designed to be washed or to come in contact with liquid. Rinse out excess debris with warm water and allow the Bin to dry.
Most owners believe that running their robot vacuums four times per week is sufficient to keep the floors dust-free. However, if you have children or pets, you should use your robot vacuum more frequently. Daily vacuuming is recommended if you suffer from seasonal allergies.
Have you just spent your hard earned dough on a Roomba? These gadgets are expensive so you want to make sure they last. For longevity, you should do a bit of regular but simple maintenance on them.
End Job: The robot will automatically end its job once you get home*. Off: If you turn off the `When I return home` toggle, the robot will continue its cleaning job with no interruptions.
A: Yes, I do. My Roomba 780 runs at it`s schedule time, 10am, then sometimes, I`ll run it again in the evening if I have a particular area that needs to be done (I do my master suite, guest suites & upstairs each separately).
If the Side Brush is not spinning, please perform the Side Brush care procedure. If the Side Brush is not spinning after cleaning, you may need a replacement Side Brush Module. Please visit the iRobot Store – Parts and Accessories, contact iRobot Customer Care, or use an authorized retailer or partner.
Loose connections will cause your vacuum cleaner to lose suction. Make sure that the dust container, the hose, the tube and the brush are all attached properly. If the problem continues, your vacuum cleaner might have a technical problem. If you suspect this to be the case, contact an authorised service agent.
So, the usual areas that cause suction loss include the wrong height setting, stuck rollers, a faulty gasket, a broken vacuum belt, a filled bag, or a clogged hose.
If your Shark ION Robot R75 vacuum stops moving unexpectedly after a few minutes of normal movement, it may simply have low battery power. Check that the device is powered on and that the battery has a significant charge.
Clog located in the vacuum hose

Turn the unit on and feel the suction at the end of the hose handle. If there is no or low suction, then the clog is in the hose. You can remove the clog by running a long, stiff object through the hose, such as a butter knife, starting at the wall end.

Why is the vacuum is blowing dusty air out of the back? Simple: the bag or canister is full and the vacuum has nowhere to store the dust it is collecting. Empty the canister or bag. If that doesn`t fix it, the vacuum filter needs to be cleaned or changed.
The most common cause of loss of suction is that the filters have become blocked. They may require cleaning or replacing. Another cause could be that the vacuum cleaner hose is blocked.
The good news is that adding this detailed mapping is easy — your robot does all the work. When you first get a Roomba, it will automatically start learning your home`s layout.
For the Roomba`s nickel-based (not lithium ion like smartphones) batteries, it`s best to keep the unit charging whenever you`re not using it. However, don`t leave it in its dock for days at a time — lots of vacuuming will keep its battery healthy.
Roomba® robot vacuums are highly efficient, only drawing power when they`re charging in docks and to ensure uninterrupted connectivity with home WiFi systems. In fact, even if left plugged in all day, Roomba® consumes less energy than the typical upright vacuum cleaner.
Running the Roomba, especially when you don`t have time to vacuum, will aide in ensuring your home (at least the floor) is kept clean, and dirt is controlled. The Roomba has a very powerful suction, but low air return that reduces the release of particulates into the air while vacuuming.
You can help Roomba along by scheduling it to clean frequently, and emptying the bin and cleaning the filter as soon as you notice it`s full. Sometimes this occurs during a cleaning job. Ensure you are cleaning the full bin sensors after each emptying to keep Roomba® running in top condition.
Clean the dock`s charing contacts

If the contacts get too dirty, the vacuum will have a tough time getting a solid charging connection, and it may be unable to dock as a result. The best way to clean the Roomba`s charging contacts is with a damp melamine foam, like Mr. Clean`s Magic Eraser.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

IRobot rumba 4000 seems to run ok and then starts making a kinda hi pitched growling noise and slows way down. it is very clean(blown clean with air compressor)sensors are clear ,newly installed well lubricated on ends of brush and beater bar, new battery. it seems like the wheel tracks may be dragging . i have cleaned and lubricated where i could on them but can’t find a way to totally remove and inspect wheel tracks.
ANSWER : It sounds like your Roomba’s brush gears are not working. Run the robot without the dust bin to see if the brushes are turning. If they are not, the robot will need to be replaced. Contact iRobot CS for support at (877) 855-8593.

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

When I vacuum w/ the brush control in the on position it make a really loud noise, almost like a grinding sound. I have looked at it and nothing seems to be wrong, but I notice that the pin that engages the belt seems to vibrate a bit, possibly creating the noise. It started when I accidentally got part of a plastic grocery bag caught in the brush. Could it have stretched a belt? Nothing is caught any other place and it only makes the noise when the brush in in the on position.
ANSWER : Yes, the belt could have been stretched and is now vibrating and hitting other parts and creating a noise if much of the bag got caught under the belt. If you have another belt for this vacuum, please put it on and see if the noise stops. If it does, then problem solved, if not let me know and we can try something else and you can send a picture or video to me of the problem.

Let me know how this works out for you.

Benjamin

Terrible noise My dyson was working great then started making this horrible noise. I cleaned the bar but noise is still there. I discovered the beater bar went around three passes then froze and started horrible noise again. my husband got the bar turning but after 2 swipes vacuuming it did it again. Can it be fixed or is it time to retire it and buy a new one. Wendy Kiser
ANSWER : That noise is the clutch. A very expensive part and very hard to replace. When a problem with the clutch happens it’s generally not worth the time and money to replace.

I suggest getting a different type of vacuum, maybe a Miele or Sebo. With the money spent on one of those vacuums, you wont have problems like you would with a Dyson. And the cleaning power is so much more powerful than what any Dyson can offer.

Front wheel problem
ANSWER : I would send it to protechrobotics. they will test all your components and let you know what needs to be done. if the repair is more than it’s worth–they will help you out too.

http://www.protechrobotics.com/

Press the power button on – good got a green light (new battery)
press the clean button – got a green light

iRobot runs for a couple of seconds and stops, then starts, then stops. After two or three times I now have a red light on for the Status.

All of the wheels seem to be clean. I used compressed air to clean the underside. But still have the start stop problem.

ANSWER : How many times does the red light blink before it pauses?

Kirby Heritage II. Beater bar does not turn. One end rotates freely, but the other sticks, preventing the bar from rotating. No obvious means to disassemble the end of the bar. Is there a way to repair this, or does this require replacement of the beater bar? Did clean the front end assembly, and removed all hair, threads and similar obstructions.
ANSWER : The bearing is bad on the end that turns hard. You will need to purchase a new brush roll assembly. If the roller is older that 4 or 5 years, it should be changed anyway. The brush strips that scrub the carpet loose their strength after many years of combing through the carpet, so it’s a good idea to change it every 5 years or so.

I cleaned out my dyson ball as it smelt when i hoovered, cleaned filters, washed out canister and took the screws out of the front bar so i could clean near the brushes.. now its making a high pitched noise and when i switch it off it makes a noise like an engine shutting down! Have i disturbed the motor?
ANSWER : Hi its Darran at Dyson.

The screws on the base of the cleaner head should not have to be removed to access the brush bar so it is possible that the brush bar has come out of alignment, hence the noise the machnie is making.

Please ensure that the soleplate has been correctly positioned and that the brush bar is aligned correctly before attempting to use the machine.

If this does not resolve the problem, please contact our Helpline on 0800 298 0298 (UK) or 1866MYDYSON (US).

Kind regards
Darran
Dyson Customer Service