Question about Hoover U6437-900 / U6439-900 Windtunnel Bagged Upright Vacuum

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Windtunnel ultra U6425-900 stops running after 5 minutes

We have replaced all filters and bags

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Sounds like its overheating and cutting out.
This is normally caused by a blockage or blocked filers.

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Posted on Feb 13, 2009


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Posted on Jan 02, 2017


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Inverted filter bags can be tough to remove. The best way is to grab the bag closest to the top portion where it attaches to the canister. The bag is locked in place by a metal rings that presses out. You want to grab a portion of the bag (some bags have a holder tab) and pull towards the center. The goal is to make a C shape of the ring that is holding the bag in place. Once the bag collapse into a C shape, the bag can be removed and cleaned or replaced. The same technique is best for re-installing the new or cleaned bag.
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Why is my hoover windtunnel vacuum cleaner shutting off?

Hi there! Sounds like the thermal protector is being activated. This is usually caused by a clog or a filter that needs to be cleaned or replaced. Follow the steps below to prevent the unit from shutting off.

1. Remove the hose completely.
2. Use a broom stick to gently loosen and clear hose of clogs.
3. Remove the bottom plate and brush-roll.
4. Use a wooden spoon or something similar to break up and remove any clogs from lower hose.
5. Check the primary filter behind the side grille. If it is dirty you may rinse it under running water and allow 24 hours to air dry outside the vacuum.
6. Remove the bag door. Clean the primary filter located on the vacuum under the bag. Rinse with water and allow 24 hours to air dry outside the vacuum. The primary and secondary filters should be replaced at least once a year.
7. Check that the bag is not full. If it is, replace the bag.

The vacuum will turn back on when it cools off. This can take up to an hour. Hope this was helpful!

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1 Answer

Mach 4.7 runs for 2.5 minutes and shuts off

Did you use it to vacuum up fine materials like powder? If you cleaned the filters, but they are original to the machine, replace them. Try changing the bag to a fresh one as well. Beyond that, check how freely the brush turns. If it doesn't turn freely that can but excess load on the motor, if its covered in threads, remove those.

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Euro-pro EP57 vacuum bags


EURO-PRO Customer Service at: 800-798-7398


or Fax to: 514-842-6985

Monday to Friday 8:30 AM - 5:00 PM Eastern Standard Time

Replacement set of 2 Cloth Bags and 2 sets of Filters: $10.95 + $3.95 Shipping & Handling
Replacement set of 10 Paper Bags and 2 sets of Filters: $ 9.95 + $3.95 Shipping & Handling

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1 Answer

I replaced the handle on my Hoover UH30010 Platinum Bagged upright and now the check bag light is on and vac will nut run.. Is there a reset button? How do I fix this?

Hey. I believe you will need to replace the main PCB board too. My new handle was sent with a new PCB board. However, I tried just replacing the handle first and it acted the same way you describe. Once I changed the PCB board it worked fine. Hope this helps.

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Can anyone help with an older Euro Pro EP055, It has very little suction.

Cleaning filters on a bagless vacuum helps but filters should be replaced frequently, as often as every 3 to 6 months on some vacuums. Foam filters aren't as critical to replace because the pores are very large (which also means they don't filter out the small particles) so they don't clog as easily but paper filters have much tighter pores which become clogged and restrict the airflow. Cleaning paper style filters with water which can pack the fine dust into the pores clogging the airflow even more.
I recommend replacing filters st least onceor twice per year and cleaning them after each use for best performance and longer vacuum life. Blowing the dust out with an air compressor is my preferred method.
Changing filters frequently on a bagged vacuum isn't as critical because the bag collects most of the fine dust, dirt and gunk. The surface area of a bag is much greater than that of a filter so a bag is less likely to get clogged than a filter. Most homeowners change the bag once per month which keeps the air flowing smoothly.

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