Question about Bosch 3931B-SPB Airsweep 6.6 Gallon Compact Wet/Dry Vacuum

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Turns on and then shuts off - Bosch 3931B-SPB Airsweep 6.6 Gallon Compact Wet/Dry Vacuum

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There is a self reseting thermal cut out sensing motor temperature. The motor is overheating due to lack of ventilation, probably obstructed by dust and stuff. Vac needs to be taken apart and cleaned to make sure.

Posted on Apr 25, 2015

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Oreck magnesium keeps shutting off


Need to check your brush roller to see if it is spinning. Turn the vacuum over and turn it on. If the brush spins before it shuts off, you may need to check the bearings to see if any strings or hair has built up around the brush bearing shafts and is causing the brush to spin slower. If the brush does not spin, you have a broken belt and you will need to replace it. The Magnesium has a sensor that looks for the brush to spin at a certain speed and if it does not, it will shut down. Hope this helps!

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Hoover bagged wind tunnel 2 vacuum turns its self off after about 10 min. of normal vacuuming I can press the power button right away and the vacuum will turn back on and vacuum for sometime as long as 5...


There is a thermal sensor in the motor which shuts power off if it gets too hot but usually it won't turn back on until it cools down. It seems you might have a defective switch

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it has an auto shut off feature if the motor gets to hot try unplugging it wait 30 mins then try again

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Vacum shuts off


If you have BISSELL vacuum, some of our models have a brush reset. Here are the instructions to turn it back on:

If something becomes lodged in the foot and the

brush shuts off, turn the cleaner off and unplug

from the outlet. Remove the obstruction. The

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Additionally, you could have dirty filters that are activating a thermal protector switch that shuts the vacuum off if the motor becomes too hot. If this is the case unplug the vacuum, clean any filters, clogs, or obstructions and wait 30 minutes for the unit to cool. Then plug the unit in and it should work. I hope this helps.

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1 Answer

My eureka enviro vac shut off and wont turn back on it was clogged but does not smell burnt . is there a reset or some kind of shut off when it gets clogged?


Same thing happened to me. I checked the owner's manual and it turns out the Eureka Envirovac has a built-in thermal cut-off switch. So anytime the motor gets too hot, it just shuts down. Most of the time this is because it gets plugged or the filter is too dirty. In my case, the dust basket thingy and filter were clogged beyond belief. Probably would help to clean that more regularly in hindsight. Supposedly it will turn back on after the recommended 30 minute wait.

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have a look at the filters first as it sounds like you blokeage

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Vacuum shuts off quickly...


don't sucktion the hose or change the filter if it has one or the bag.

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4 Answers

U5180-910 vacuum shuts off on own


I had same problem. Turned out to be the filter that sits above the waste cannister. Remove the waste cannister. There is a little orange lever that releases the filter. It was caked with dirt not allowing any air flow causing the motor to overheat.

This foam filter gets dirty pretty fast.

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