How to fix a vacuum cleaner with no suction?

Are you fighting with your vacuum cleaner, which has lost suction? A vacuum cleaner with no suction is not a useful tool anymore. But at the same time, it is not recommended to buy a new one. Because more often than not, it is not required.

Before you spend some money at a repair shop, it is suggested to do everything that you possibly can in the house and save as much money as you can.

When the machines lose the suction, the first thing you will do is NOT PANIC! Yes, that’s the first advice that you are going to get today.

The reason is simple.

A panic-stricken mind stops to comprehend even the easiest of solutions. When the problem looks like a rock, first break it down into small pieces, and later, the smaller details become easier to understand.

Well, don’t get bored, I am done with the philosophical side of problem-solving. Let’s get to the real job.

I will list a few problems of why your cleaner has lost the suction and their respective solutions as well.

1: When the dust bag or canister is full

When you are using the best Vacuum cleaner, yet it is not doing an excellent job of picking up dust and debris, you can start by looking at the bag or the canister of the machine. The dust bag of your bagged vacuum cleaner might have crossed its capacity.


The most straightforward way is to look for the full line on the dust bag or the dust canister of a bagless vacuum cleaner. When the dust has crossed the MAX limit line, it may start losing its performance. It is recommended to quickly replace or empty your bag or dump your canister’s dust in the main bin. A full bagged vacuum cleaner may also make funny sounds like it is struggling when it is sucking up dust and pet hair. This can even happen in your best Robot Vacuum for pet hair because hair strands take more space, and cup can fill up quickly.

2: When the height of the brush head is wrong

This problem might look basic, but many a time, this is the main reason for the machine not picking up dust and hair adequately. If the cleaning head’s height is too high, it loses its grip and power to lift the debris up.


Typically your vacuum cleaner comes with a dial setting visible on the body. Usually, you may find multiple settings on it. The bare floor or 1 is the lowest setting for hard flooring arrangements like tile and wood. At the same time, the highest setting is for the furriest and fluffy carpets. If the Vacuum has lost suction, check if the height is adjusted according to the floor type.

How to fix a vacuum cleaner with no suction

3: When the hose of the vacuum cleaner is clogged

The third possible reason for your best lightweight Vacuum losing suction is when something is clogging the hose. This happens when there is too much stuff on your floor, and it was all sucked in at once. This might have overburdened the hose and hence the loss of suction.


Detach the hose from where it is connected to the canister or the dust cup to know the blockage. You may find a bunch of hair, generally human hair, because they are longer than pet hair. Try removing the clogged materials with a tweezer, or give some gentle lurches to relieve the hose.

The second option is when the blockage is in the middle of the hose where you can’t reach with your fingers or tweezer. Take it outside and give quick and forceful shakes until the clog comes out, and you can access it with your hand.

A pro-tip: Keep a dustbin near you where you can throw the loose dust from the hose. Besides, be ready to get a spell of loose dust when you give a jerk.

4: When the air is escaping from the machine

What if a vacuum cleaner is unable to create the Vacuum it is named after? Sounds hilarious, right? That can be one reason your vacuum cleaner loses the suction power and says no more to picking up more dust from the floor.

A vacuum cleaner relies on its Vacuum creating mechanism to pull stuff up, but if the air is escaping the system, it cannot do the job it is designed to do.


Most commonly, you won’t find any technical glitches behind this problem, rather your non-brainer simple mistakes.

There are few places to check where the air is leaking through the system. They are

  • The joint where the hose connects to the system. After taking it off, you might not have fitted it tightly
  • This might have happened after you took off the attachments and put the central hose back
  • The pieces might not have attached properly
  • The bag might not be attached to the Vacuum properly

If any of this is happening, make sure to fit them properly to avoid air leaving the system.

5: When the roller is clogged

If you have ensured everything mentioned earlier but continue to have a problem with your suction, make sure to check your roller as well. Many a time, a clogged roller causes the loss of essential suction power. You can make sure by turning the machine over and check if there are hair thread rolled around the roller and impeding its movement.

If this happens, the roller struggles to pick up dust from the floor and fail badly at the end.


Once you are sure of the clogged roller, take a small but sharp pair of scissors and start snipping through the hair and fur. You will find it sufficiently satisfying when all the hair and gunk is falling on the floor. Make sure to keep a bin under so as not to spread it all over the place.

Are you all done? Still not working? Once you have everything, you could, and if still, you can not bring back your machine’s suction power. It is time to take it to a mechanic shop. Not that this can happen with any vacuum cleaner you have. Whether you own the best robotic pool cleaners or handheld vacuum cleaner, it is advised to look thoroughly before taking them to any repair shop.

Final Words:

A vacuum cleaner is the best tool for cleaning dust, debris, and pet hair from your floor. But when it loses its suction, it is nothing more than a piece of stick or a big-bellied machine. So bringing back suction is integral to doing its job. We have listed possible reasons and solutions. I hope they help you to avoid spending any money at the repair shop.

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