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How long does it take to cut out? If it is like 10 - 15 minutes it is likely that your filters need replacing. If you are using non genuine miele bags you may be creating an overheating problem also. Of course it could be an actual motor problem as well. Easy way to test is to remove the hose, bag and filters. Turn the machine on and let it run. If it does not cut our it is an airflow problem. Add your bag and filters back in and if it cuts out replace anything that looks dirty. If all good add the hose back on and if you have a problem here you may have a blockage that needs to be removed. If you need any parts for any miele in Australia visit vacuumspot.com.au
The motor is overheating and control features cause it to shut off to prevent burning it out. First check the bag. If it is full, remove and replace with a new one. A full bag can cause the motor to work harder, and thereby overheat. Next check the filters. A dusty filter will keep air from cooling the motor and again cause overheating. The HEPA filter needs to be checked also. Most filters can be dusted off. Some can be washed, air-dried, and replaced.Others will need to be removed and replaced. Your owner's manual should tell you how to clean filters. I hope this helps. If it solves your problem, please let Fixya know and post a rating for my solution.
Sounds like the motor is overheating and cutting out. The motor has a protection device that automatically resets when the motor cools down. The most common cause of overeating is blocked or dirty filters. Don't be fooled by Dyson's "lifetime filters". They need to be cleaned and/or replaced regularly. If after cleaning/renewing filters it still does it, you need a new motor as the trip device is not available separately. New motors can be found on eBay quite cheaply but it requires some special tools and good DIY skills to do it. Have a look at www.dysonmedic.com to see if you you think you can do it, but if not it's time to call a repair shop or the Dyson helpline.
It's not necessarily overheating, but the thermal-fuse is definitely tripping and it takes 30 minutes to reset. There are several causes of this (in most common order):
1. A blockage in the suction system or a full dust tank
2. Dirty filters (Don't forget to check the air outflow filter at the back)
3. A worn belt
4. A faulty thermal fuse.
5. A faulty motor
As you've stated that the dust tank is empty and the filters are clean (don't forget to check the HEPA / air outflow filter at the rear), let's look at the other options.
Check the suction is good by putting your hand over the end of the hose and seeing if it will stay attached to you hand upside down.
Next, check the belt isn't slipping. Lie the hoover on it's side and check the rollers are turning constantly and at high speed. This isn't foolproof as it doesn't account for the extra friction of the brushes on the carpet, but it's a reasonable test. A worn belt wont necessarily be cracked. It can stretch and slip without cracking. Also, when a belt is slipping, you can usually smell burning rubber.
If the hoover runs ok for 15 minutes and there is no burning smell from the motor, then it's more likely a faulty thermal fuse than the motor itself. They are replaceable but unfortunately, thermal fuses aren't always sold separately and sometimes you have to buy a new motor (!!) to get a new fuse. Hoover are one of the best manufacturers when it comes to buying spares, so you might be in luck.
I've removed faulty thermal fuses from vacuums because a spare wasn't available without buying a motor. However, I have always done this with the owners full consent after explaining to them that a safety feature has been removed and they should avoid using the vacuum for prolonged periods without letting it cool. I also test the rest of the vacuum fully before returning it.
If you want to try removing yours, it will be attached to the motor with simple spade connections, but you do this AT YOUR OWN RISK. The danger in doing this is that the motor will burn out if it gets too hot, rather than being switched off by the fuse.
Sounds like the motor is overheating and cutting out. The motor has a protection device that automatically resets when the motor cools down.
The most common cause of overeating is blocked or dirty filters. Don't be fooled by Dyson's "lifetime filters". They need to be cleaned and/or replaced regularly.
If after cleaning/renewing filters it still does it, you need a new motor as the trip device is not available separately. New motors can be found on eBay quite cheaply but it requires some special tools and good DIY skills to do it. Have a look at www.dysonmedic.com to see if you you think you can do it.
mine too.. I got local place to do a deep clean (sic) of all the filters but its made little difference. Hardly does a room before cutting out and then you have to wait an hour for it to cool down. am veryy disapointed
There's a thermal cut-off when the unit has overheated. Mine does this quite often and I remedy it by emptying the canister and making sure the filter is clean, especially of lint and things that prevent good air flow.
You should check the disc filter that is located under the paper cone support. The support is secured with a single screw in the middle at the bottom. This filter is commonly overlooked and when it gets dirty will restrict airflow and cause the motor to overheat. Most motors have a Hi-Limit switch incorporated into the motor to protect against overheating. You should also check the top filter (which is probably foam) and replace if it is clogged.