Hello,
It sounds like your thermal reset switch inside of your Hoover may have gone bad. When a vacuum cleaner doesn't turn on it, it's either caused by one of four things.
- Electrical Short in your Cord.
- Plug has gone bad.
- Motor of your vacuum is faulty
- The On / Off Switch has gone bad, and/or your Thermal Reset Switch has gone bad
Since this happened while you were vacuuming, I would guess that this is either your electrical plug that's shorted out, or that your thermal reset switch has shorted out. Your model Hoover was built with a protection system that is supposed to automatically shut down your machine if it senses any excessive heat. This mechanism is controlled by a Thermal reset switch which is located in motor compartment. This part is notoroious for failing, even when there's no overheating that's occured.
Before you disassemble the entire machine to check this part though, I would try testing the On / Off switch in your machine, as well as testing the electrical cord, which will also let you know if your plug has gone bad.
Here's a link to a solution I've done here on FixYa explaining how to check the On / Off switch;
http://www.fixya.com/support/r4530569-replace_off_switch_hoover_windtunnel
While you have this apart, you can use the same electrical tester to test your cord. Simply put one end of the test into the terminal from the switch, and the other end of the test on one of the metal prongs that plugs into the wall. See if you have continuity here, if not, switch to the other prong of the plug and see if this helps.
If not continuity, this means your plug, or your cord has failed. If you do have continuity, this means that it's either the On / off switch, or the Thermal Reset Switch that's gone bad.
Here's a link to the solution that I've done on here showing how to replace the Thermal Reset Switch on your vacuum cleaner:
http://www.fixya.com/support/r4999778-replace_thermal_overload_switch_hoover
If you'd like some more help diagnosing this vacuum, please feel free to just use the comment field on the bottom of this page. I'm always happy to help you do some more advanced diagnosing, or answer any questions you may have.
If you found this solution helpful, please be so kind and rate this repair helpful, or leave feedback for me. This is greatly appreciated by the FixYa community. Thanks so much,
Chris Jones
GoVacuum.com
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