Won't start Was working. Then stopped. Changed outlets, Changed the bag. Didn't help. Suggestions? It is about 7 years old.

I am assuming you have checked the breaker that it is on? Have you tried using it at a different outlet?

I'm not real experienced with this model vac, but I do know that many of the newer vac's are being manufactured with a small button or lever, whatever the particular brand of vac decides would best fit on their unit, that would be located somewhere around the edge of the bag door opening and would need to be depressed by having a bag inside in order for the machine to run. I would check for something of this nature to be sure that during the bag change that you didn't just miss putting it in quite right to depress the go button. Other than that, it's entirely possible that the switch died. If that's the case you'll need to bring it in to a vac repair shop for help.

you may have debris in the area around the motor, or it may have something lodged in the motor.

An 8750 is likely at least 20 years old but still may have lots of life left. I still have 8600 series Riccar vacuums brought in to my vacuum shop for service. You may have a loose wire, bad switch or power cord. I would take it to my local Riccar dealer to diagnose and repair.

hi from uk may i suggest you remove cover and the new dust collection bag then if you look in the bag compartment there is a gauze filter fitted usually grey in colour ? at opposite end of compartment where bag connects this gauze filter is the outlet from bag compartment that the air exhales when vac is operating ie as vac **** up dust into bag the bag has microscopic holes that allow sucked up air and dust to collect but keeps dust from passing into bag chamber but allows air to escape thro holes and so enter bag chamber then escapes via the gauze filter to outside of vac hope you follow this ?? now if this filter is blocked/never been cleaned/changed ? then the symptoms of indicator bag full light will come on you can remove and wash filter if it is gauze typ? dry and refit then try vacuuming ? or replace filter they are not expensive usually in pack of 3 in uk DO NOT RUN VAC WITHOUT THIS FILTER FITTED ! or you will have some dust in the room ? hope this helps?

the motor could have fried or the wires have been shaken off the motor terminals.

I have the same problem and mine is less then a year old.

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Won't work (by 2 users)
Posted by AndiR on Jun 04, 2008
My Eureka Mighty Mite 3670 Bagged, was working fine, and we unplugged it to switch to another outlet in another room and it just stopped. We tried several other outlets and it just won't turn on. We thought maybe it got hot because we had been using it for a while and we let it rest for a while and then changed the bag just to be sure, although it was not full. But it still will not turn on. Any ideas……X
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OK
1 Other User Has the Same Problem Comment by Guest, posted on Jun 06, 2008 I had the same problem today. Have a 9 amp model I bought 10 years ago which I never use. It has been sitting for years. Today put in new bag and ran it continuously for 45 minutes. After I turned it of it wouldn't restart. Tried another outlet and wouldn't restart. Felt canister at back and motor housing was hot so I thought I might need to let it cool down. After letting vacuum cool off for 10 minutes it restarted. All I can assume is that the vacuum has a built in overheat sensor on the motor. Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. Eureka Mighty Mite #3670 Bagged Canister. I have the same type Mighty Mite Canister and from what you are saying the must be some type of heat sensor that is shutting off the motor to protect it from excessive heat. Al of the old ones have had lower amps and did not needs the heat sensor but once the bag is full and the filter clogged; they will shut down as well. They all use a plastic hose to clean with and that even gets hot sometimes. So I suggest that you get an owner’s manual from the manufacturer on you particular model so that id if happens again, you will be prepared. So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.
http://www.eureka.com Customer Service 1-800-282-2886
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most likely if it dont turn on at all period.1 of 2 things on/off switch went out or 2 motor burned up but most time u can tell if it is bad motor cause if it smelt like burnt plastic ever bad news its dead but hopefully u can just change switch

There is a reset button at the back of the powerhead. The user manual can be downloaded from the electrolux website, although I didn't find it very useful. There was some info on how to change the powerhead drive belt.