Why Is My Bissell Vacuum Not Suctioning? 7 Fixes to Try

Quick answer: Why is my Bissell vacuum not suctioning? Most of the time the cause is a full dirt tank, a dirty or still-damp filter, or a clog in the hose or lower hose. Bissell’s own troubleshooting starts with one test: remove the tank and feel for airflow at the port. If there’s none there, the motor side needs service.

Weak pickup feels serious. Usually it isn’t.

When I read through Bissell’s support pages for its upright and cordless models, one pattern kept repeating: nearly every fix is a cleaning job you can do at the kitchen sink with warm water, a towel and a broom handle. The exception is a machine that pulls no air at all at the motor, and the check for that is quick.

So start there.

Step 1: Find Out Where the Airflow Stops

This is the fork in the road. Everything else follows from it.

Upright bagless models (PowerForce Helix): take the dirt tank off, switch the vacuum on, and put your hand over the suction port.

• Pull at the port? Good news. The motor works and the blockage sits upstream. Keep reading.
• Nothing at the port? The company’s instructions say to contact them. Don’t open the motor housing.

FeatherWeight and ReadyClean cordless models: lift the hand vac off the handle, power it up, and feel its open end.

• Air moving there? Look at the brush and foot area instead.
• Nothing? Remove the tank and the mesh filter, then test again. Airflow now means dirty filters. Still dead means a call to support.

Why Is My Bissell Vacuum Not Suctioning? 7 Causes

Once you know the motor pulls air, I’d bet on one of these seven. Honestly, I’d check the first three before anything else. They’re the quickest.

1. A packed dirt tank. Air can’t move through a full bin.
2. Dirty filters. Most uprights have a pre-motor filter, and select models add a post-motor one.
3. Damp filters. The Helix page warns that performance drops if filters aren’t completely dry.
4. A clogged hose. Anything the machine swallows can lodge inside it.
5. A blocked lower hose. This short section near the floor is easy to forget.
6. A brush roll that won’t spin, or a broken belt.
7. An airflow diverter set to hose. On some Healthy Home and PowerClean uprights, a small lever decides whether pull goes to the floor or the hose.

How to Fix a Bissell Vacuum Not Suctioning

Unplug before every step below. It’s the first line in the brand’s instructions, and I wouldn’t skip it.

Fix 1: Empty and Wash the Dirt Tank

Dump it over the trash. Then wash. On Helix models, twist out the separator and rinse it under warm water.

The Healthy Home and PowerClean upright (model 16N5) splits in two. You hand wash the lower portion, brush off the screen on the upper part, and let everything dry before reassembly.

Fix 2: Rinse the Pre-Motor Filter

Pop it out. Grey? Wash it. Warm water works on the Helix; the 16N5 instructions add a little mild detergent.

Then comes the hard part: waiting. Allow 24 hours, or longer, until it’s bone dry. My take? Keep a spare so one can dry while the other works.

Fix 3: Clean the Post-Motor Filter, If There Is One

Not every model has this. Where it exists, care differs: Helix owners rinse theirs, while the 16N5 calls for unscrewing it and tapping it against a trash can.

Check your manual before wetting it. Don’t assume.

Fix 4: Clear the Hose

Detach it and look through. The trick, straight from the 16N5 page, is to run a broom handle through to push out any clog.

A broom handle is long and blunt, so it reaches the middle without puncturing anything. In practice, a clog halfway along is invisible from both ends, which is why I’d never trust a quick glance.

Fix 5: Inspect the Lower Hose

On the Helix, remove the screw that holds this section to the back of the machine and check inside. The 16N5 hides it behind a clear window held by three screws; pull the hose down flat and push that broom handle through again.

Fix 6: Check the Brush Roll and Belt

Flip the foot over and take off the cover. Then:

1. Look for cracks in the cover.
2. Lift out the brush roll, clear the hair, and make sure it spins freely.
3. Slip the belt off the motor shaft and inspect it.

A roll that won’t spin, or a belt that’s snapped or damaged, needs replacing. Without a turning brush, carpet stays dirty even when airflow is fine, which can look a lot like weak pickup.

Fix 7: Set the Airflow Diverter

Only some models have one, like the 16N5. Easy to miss. Slide it right for hose cleaning and left for floor cleaning. One wrong click and the carpet gets nothing.

Quick Checklist

Symptom	Most likely cause	Fix
No pull at the port with tank removed	Motor fault	Contact Bissell
Weak right after washing filters	Filter still damp	Wait the full 24 hours
Strong at the port, nothing at the floor	Clog in hose or lower hose	Broom handle through both
Strong airflow but carpet stays dirty	Brush roll stuck or belt broken	Inspect and replace
Hose works, floor doesn’t	Diverter set to hose	Switch the diverter

How Often to Replace the Filters

For Helix models, the manufacturer suggests fresh filters every 6 months, or as needed. If you wash them often and performance keeps fading, a new one is an easy test.

Own a carpet cleaner rather than a vacuum? The causes there are different, so see how to fix Bissell carpet cleaner suction. Dyson owners hearing a surging motor can read why a Dyson vacuum pulses, and our carpet and floor cleaning section covers the rest.

Frequently Asked Questions

Why does my Bissell vacuum have no suction after cleaning the filter?

The filter is probably still damp. Bissell says to dry filters for 24 hours or until completely dry, and that suction suffers if they’re not.

How do I unclog a Bissell vacuum hose?

Detach it and run a broom handle through, as the company’s instructions recommend. Check the lower hose near the floor too.

Why is my Bissell cordless vacuum not suctioning?

Test the end of the hand vac first. If air moves there, the problem is in the brush or foot. If not, remove the tank and mesh filter and test again; airflow now means the filters need cleaning.

How often should I replace my Bissell vacuum filter?

For PowerForce Helix models, every 6 months or sooner as needed.

When should I contact Bissell about suction?

When there’s no airflow at the suction port with the dirt tank removed. The brand treats that as a job for its support team, not a home fix.

Last updated: November 10, 2026. Sources: Bissell: PowerForce Helix no or low suction, Bissell: PowerClean/Healthy Home upright no suction and Bissell: FeatherWeight/ReadyClean cordless no suction.