i have a wer or dry 6200p, after a few mins working the white ball in the centre gets sucked up, making the machine race & suction stops. WHY ?

r.potts, July 2013

please peccavi,give me the scientific explanation of what you have just said,i.e.vacuum cleaner motor uses less power when it draws less air.i e.the hose is blocked,hose blocked,motor strains to gain momentum,heat increases motor runs faster,more power is needed,more current needed,are you really that stupid ?????to put it in a way your feeble mind will understand,its like pressing your foot down on the gas peddle in your car and putting your foot on the brake at the same time,now,let me ask you,will you use more petrol ??????

mm, August 2013

the motor has no load?????if you block the hose you create a very heavy load the motor draws more current (look it up ) as it strives to over come the blockage ,the t.o.c. trips and depending on the make of the vacuum,it may reset,or it may be a one shot unit,then you need to replace it,you have a lot to learn ,and you give advice ????

mm, August 2013

how do you work that one out ?a vacuum motor will use less power when the hose is blocked ?if hose is blocked then the motor will race,as usual your talk is on the level of your intellect the faster the motor goes the more power it uses,if you know how to use a test meter connect it up to a vacuum motor with a load on it ,and then with no load on it ,you will see what I mean,least you give me a laugh !!!!!!peccavi

mm, August 2013

clean the filter

mm, August 2013

Vacuum motors are cooled with the air drawn through them - they can get very hot and risk catching fire if they're not cooled - so they have an overheat cut-out switch to shut the motor down if it gets too hot. The switch will self re-set after an interval.

The load on a vacuum cleaner is the air it shifts - if the hose is blocked or you cover the air inlet with your hand then no air can get in - the motor has no load and it speeds up - you can hear a higher pitched note - but it also has no cooling air so it's just a matter of time before the safety switch operates.

When the airflow is restored then the motor has proper work to do and you can hear the pitch change to a lower note.

Strangely a vacuum motor will use slightly less power hen the hose is blocked.

Your issue is caused by the white ball blocking the air flow - either that or an overly sensitive thermal cut-out switch.

There will also be an internal filter to stop any dust and dirt entering the motor - you might check it and give it a clean if it's dirty.

Good luck...

Peccavi, July 2013