A vacuum with weak suction can turn a simple chore into an exhausting workout. Try this quick fix to make sure your vacuum picks up everything in its path. Step 1: Clean the bag or canister and filter. Check to make sure the bag or canister isn't full and that the filter isn't dirty.
SOURCE: Bosch Vacuum Cleaner: I changed
Greetings from GoVacuum.com,
It sounds like you may have a bad thermal switch inside the machine. Most vacuum cleaners have a switch connected to the motor, so if the vacuum cleaner is running hot, it will shut off to prevent any damage to your motor. You did all the right things by checking the bag, making sure the hose was NOT clogged, and replacing HEPA filter.
Most of the time on canister vacuums, the reason is caused by a clog in the hose, or somewhere in the powerhead. If you're sure that there is no clog anywhere, it is going to be the thermal switch on the motor.
Here's a link to the parts schematic for the Bosch upright vacuum. I hope it helps you in determining how to access the thermal switch. A word of warning to you before you try it, this is a very tough vacuum cleaner to work on, you may want to bring it in to a vacuum repair shop, as this is not an easy repair.
Here's the link;
http://www.essco.net/Customer/SchematicFrame.asp?FileName=Turbo%20jet%20upright.pdf
Please let me know if you have any other questions,
Chris Jones
GoVacuum.com
1-866-468-2288
[email protected]
SOURCE: dirt devil swivel glide - no suction
check the filter gauze on the unsud of vack where bag is if this is blocke you will not have vacuum as there will not be ventilation thro this filter should be able to feel blow of air from this vent when vacuuming up hope this helps good luck from uk !
SOURCE: vacuum not picking up
At the top of your wand, do you have a plastic swivel that cover a hole in the wand? This is for when you are cleaning curtains, and if that is open, or cracked you will loose suction there... also check your hose for cracks, or breaks. If it were in the shop I would put a gauge on it... normal suction is about 80-95 inches of water lift at the end of the hose. Once you have check each section of the hose, and wand, check the housing for cracks, a missing gasket (Very Good Reason For Lack Of Suction) As to your Filter, how long have you used that one filter, you can clean them for a while, but once a paper filter gets full of FINE dust you won't get it all out, you will have to replace the filter itself at that point. I hope this was helpful.
SOURCE: kenmore vacuum model 37105 no suction
are the brushes moving?if so , it is clogged somewhere, that is my guess
SOURCE: vacuum cleaner will not pick up
How to Repair a Vacuum
Cleaner
http://home.howstuffworks.com/how-to-repair-small-appliances8.htm
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