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Thermal senser on the side of the vacuum motor there is a little thermal senser that has rust all inside of it ,my ? is will that cause the motor to shut down ,could the rust in the senser causing it to cut off ,cause the vacuum runs well then cuts off

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If it is going bad, it will cause the motor to shut down, replace it then you will know if that is the problem or a problem with the motor itself.

Posted on Mar 25, 2008

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1 Answer

Why wont the reset button depress on riccar 8955 or turn on after trying


The reset button does not have a significant amount of movement in response to pressing to with a paper clip or ball point pen. If the vacuum does not start upon pressing the button, then either the thermal protection circuit is not why the vacuum stopped in the first place or the reason the thermal protection circuit tripped has not been cleared. Quoting from the manual


"Your Riccar vacuum cleaner comes equipped with a Manual Reset Thermal Fuse Protector. This thermal protector is designed to protect your vacuum cleaner from overheating due to a restriction in airflow (i.e. clogged hose, operating the vacuum without a bag). Should this situation occur, the thermal fuse protector will safely shut off the vacuum cleaner to avoid any potential damage. NOTE: To determine it was the thermal fuse protector that turned off your vacuum
cleaner, please refer to the vacuum cleaner's headlight. If the headlight is on while the motor is off, then the thermal fuse protector did safely shut down the motor. If both the headlight and motor are off, then there is some reason other than the thermal protector (i.e. pulled plug) your vacuum is off.
To reset the thermal fuse:
. Unplug the vacuum cleaner

  1. Check for problem - over-filled bag, clog in hose, clogged filters, etc.
  2. Correct problem
  3. Locate "tripped" fuse - the small white button located on the bottom of the back side of the main body (roughly one inch to the right of the left wheel)
  4. Using a pencil, paper clip or other pointed object, push the reset button in
  5. Plug vacuum cleaner in and resume use"

Mar 08, 2015 | Riccar 8955 Upright Vacuum

1 Answer

Vacuum shuts off while in use


There is a thermal reset inside the motor that shuts it off. There may be a clog.somewhere or something restricting the airflow, it could be clogged filters. If there are no clogs or restrictions it is possible the thermal reset is bad in which case you will have to replace the motor.

Jan 26, 2014 | Hoover U6437-900 / U6439-900 Windtunnel...

1 Answer

It was working fine and them just stopped it is not that old and was not making noises HELP!!


Vacuum cleaners have electric motors in them that require proper airflow to pass over them to keep them cool. Many vacuum cleaners have a thermal (heat) sensitive shut off mechanism built in. This mechanism should prevent the burn out of the motor. If you run a vacuum too long with a clogged hose or clogged filters (especially bagless vacuums) or clogged bags, that is essentially choking the vacuum for air and not allowing it to breath properly. This will cause it to overheat and shut down. Most of the big box store purchased vacuums have very thin wires in the motor windings and can only do this a few times before the motor completely fails. If your vacuum has been shutting down, then cooling off and restarting after about 30 to 45 minutes, then shutting down after only a few minutes of use, your machine is probably clogged up or the filters are compacted.

Jul 05, 2011 | Vacuums

1 Answer

After from ten to fifteen minutes of use it automatically shuts down but will sstart up again after fifteen minutes.


It sounds as if the motor has overheated at some point and damaged the thermal protector in the motor. Be sure all the filters are clean before operating the vacuum. If it continues to shut down, the thermal protector will need to be replaced. ( Part # 28382093 ) This is a very common problem with bagless vacuums, if the main filter is not cleaned after every vacuuming.

Mar 07, 2011 | Hoover U6630-900 WindTunnel Bagless...

1 Answer

Is there any known do-it-yourself fix for the nutone vx-550 overheating problem?


there is a way to do it, yes. However, are you sure that the PC board inside is not what is causing the problem?? I mean, are the lights on and function normally when you turn the switch on or off??

If so you can proceed to bypass the two thermal cut offs located on the field coil on both sides of your motor inside. Yes, it can be done without taking the motor apart.
Also, move the other thermal next to the motor and attach it to the housing near the back of the machine. DO NOT remove it unless you absolutely need to. IE test the unit and let it run for approx 20-25 mins. if it does not shut off there is no problem with the last thermal cut off. If it shuts down within 5 mins, take it out too. It could be faulty now.

Good luck,
Mark

Nov 11, 2010 | Broan-NuTone VX475 Bagged Central System...

3 Answers

Over heats and shuts off, wont start again untill it cools off. can maybe vacuum one room before overheating. cyclone tubes are all clean, all hoses & lines are clear. this vacuum is fairly new, not...


The electric motor has a thermal switch and is self-resetting so there is no re-set switch. Make sure the air filter for the exhaust is clean. Also make sure that the height adjustment is not too low causing strain on the motor. Always bring the height down to where the brushes just make contact with the carpet. It is possible that the thermal safety switch is tripping due to a bad switch. In that case I would contact Drit Devil if it is still under warranty.

Nov 10, 2009 | Dirt Devil Reaction Twin Cyclone Upright...

1 Answer

Windtunnel shuts off after a few minutes of use.


yes i think i can help. all new hoovers have a thermal motor senser that turns the motor off wen it heats up to a certain point mine hade the same problem so i toke it apart and the bering in the motor was worn and heating up and tripping the senser if u have wd40 put some on the bering and be shure to wipe excess wd40 off so it doesnt get in the wires.

Feb 03, 2009 | Hoover U5450-900 Windtunnel Supreme Bagged...

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