Why Does My Vacuum Smell Burnt?

Why Does My Vacuum Smell Burnt?

When cleaning the ground, vacuum cleaners are the most commonly used by consumers. With a household vacuum cleaner, it is no longer so laborious and time-consuming to clean, which is very convenient. The well used vacuum cleaner suddenly smokes. What’s the matter? The following is a brief description of how to do when the vacuum cleaner burnt. You can learn about it together if you are interested!

Causes of Vacuum Smell Burnt

  1. Vacuum Electrical plug problem

If the power supply of the vacuum cleaner is plugged into the socket, it will smoke, and there will be a burning smell. First, check other electrical appliances. If other electrical appliances can be used normally, it means that the socket is OK. This may be due to poor contact. This may also happen if the power of the vacuum cleaner is too large and the socket can not afford it. So we can consider replacing a high-power power supply.

The vacuum filter is blocked or the bag is too full

  1. Overheating

If you smell the scorched vacuum and smoke, be sure to check whether the motor is overheated and clean the interior of the vacuum motor. The vacuum cleaner may be burnt because the temperature of the gasket is high, the plastic is burnt out, and even the rotor coil of the vacuum motor is burnt out. If the vacuum motor is a single drive connected motor, it can also rotate if the rotor is burned out, but if the heating is serious, the speed is not enough. At this time, we should stop using vacuum and go to professional maintenance personnel for maintenance.

Why my vacuum cleaner overheating?

  • Dirty or damaged vacuum
  • Motor bearing too dry
  • Overuse vacuum
  1. Vacuum belt damaged or broken

Belt breakage is one of the main reasons for the burning smell of the vacuum cleaner. To check, just turn off the vacuum cleaner and unplug it from the socket, and then first check whether the belt is intact. If it is intact, you can check whether the belt has hair, carpet fiber and rope. If you find anything pulled out of the brush roller immediately, please insert it back! Or replace the belt (if necessary).

  1. Foreign matter blockage

Another place to check is under the brush roller. Sometimes, when vacuuming, an object may be mixed between the brush roller and the belt, which will cause the vacuum cleaner to emit the same burning smell. To check this, simply pull the vacuum cleaner off the socket and gently pull the object out of the vacuum cleaner

  1. Vacuum parts worn

The worn carbon brush of vacuum will cause poor contact, which will cause such fault phenomena as ignition and smoking. At this time, it is only necessary to replace a new carbon brush, and then clean the steering gear in contact with the carbon brush. The commutator of vacuum has pieces of commutators, and each piece is insulated. If there is residual carbon powder in the gap, it can be removed with a paper cutting blade. If the commutator is worn, a new motor must be replaced.

  1. Motor fault

If you notice that the brush roller and belt of the vacuum are working normally, and there is still the smell of burnt rubber, you may cause problems with the motor in the vacuum. Please authorize the dealer or service center to check the vacuum motor. This vacuum fault requires more time and money than other faults.

Why is My Vacuum Smoking?

  • no filter installed
  • a hole in the filter
  • a clogged filter
  • a crack in the filter housing
  • the filter was installed incorrectly
  • the dust being picked up is too fine for the filter

We rely on vacuum cleaners to quickly and effectively remove dirt and debris. More and more people are replacing the old models with newer and more expensive models. They have equipped the new model with filters (HEPA) to help reduce indoor pollution caused by dust and debris. However, if you use vacuum smoking improperly, it will smoke. You need to take care of all the household appliances so that they can continue to be at their best. However, if we do not properly maintain the vacuum cleaner, vacuum smoking will fail and show signs of neglect. These symptoms can have a variety of severity, such as power failure, overheating, release of burning odor and even smoke.

The motor of vacuum cleaner sometimes produces a lot of heat when it works. Heat must also be dissipated to prevent overheating of the motor. The aspirated air is used to cool the motor. It plays the role of motor air cooling. To prevent inhaled dirt from entering the engine, air is delivered through a filter. Over time, these may become blocked, affecting the air cooling of the engine – the engine is very hot when running. Therefore, clean or replace the engine filter (according to the operating instructions). After that, the overheating problem should be solved to solve the possible causes of the scorched vacuum cleaner.

The exhaust filter may also be blocked, causing motor cooling problems. Therefore, if the vacuum cleaner has a burning smell, the exhaust filter should also be checked. It is usually located at the top or rear of the device, i.e. where the air is discharged. Clogged hoses or suction nozzles can also cause overheating, resulting in a burnt taste. According to the set power level, the motor of modern vacuum cleaners below £ 50 can provide a certain amount of air flow. If the air flow is too low (e.g. due to blockage), the motor will try to increase the power to achieve the air flow. This in turn generates more heat that cannot be properly dissipated.

Therefore, check all nozzles, hoses, and connections for objects that may be blocked. If you don’t find anything, you’d better check the dust bag.

In fact, vacuum cleaners always emit a bad smell, and usually, as with the previously mentioned techniques, there is no big problem to control. However, if the vacuum cleaner has a burning smell and the above prompt is not improved, the motor may be damaged (initially). If damage to the motor is suspected, the vacuum cleaner should not continue to be used!

Motor damage is usually caused by wear or damage caused by long-term improper use (such as overheating). In most cases, it is not worth repairing. Most vacuum cleaners and vacuum robots do not have replaceable motors or spare parts.

What to Do When a Vacuum Smells Burnt?

When this happens, we need to remove large objects and cables from the brush rollers. Remove the belt and reinsert it. If the vacuum smoking belt is worn or damaged, replace it according to the instructions in the vacuum cleaner owner’s manual.

We also remove hair, lint and other debris from the vacuum smoking brush roller. Empty the vacuum bag or vacuum tank before it is fully filled. We need to replace the vacuum smoking air filter at least once a year. If your vacuum cleaner uses a HEPA filter, replace it every six to eight months. If you are using a canister vacuum, empty the canister before it is fully filled. Depending on your vacuum smoking model, you may need to evacuate two to three times a year. If your vacuum smoking has diagnosed the cause of smoking, you can continue to solve the problem. Generally, the vacuum smoking vacuum cleaner can be easily fixed by replacing the vacuum smoking belt and cleaning brush roller.


We must not ignore vacuum smiles burn, because it may indicate the existence of serious (potentially dangerous) electrical faults. However, most of the causes of combustion odor can be easily solved. We just need to replace the vacuum belt, repair the blockage or check the filter. If the motor or electronic equipment of your vacuum is the cause of burning odor, rather than overheating caused by problems elsewhere in the vacuum cleaner, you need to find a professional to repair it.

Frequently Asked Questions

  • What’s the Most Common Cause of a Burning Vacuum Smell?

It is difficult to say what is the most common cause of vacuum smiles burn, but we believe that belt damage is particularly common. If vacuum smiles burn smells like rubber, it’s probably a drive belt. However, overfilling, clogged filters, and clogged hoses are also common. Vacuum motor failure is the least common, but also the most expensive and difficult to repair.

  • What Are Some Other Causes of a Bad Smell from a Vacuum?

Burning is not the only stink from vacuum cleaners. If your vacuum cleaner has a musty or other unpleasant smell, it may be another reason. Some of the most common causes of vacuum smiles burning include dirt accumulation, mold growth in the vacuum chamber (usually due to humidity), and pet hair. If your vacuum cleaner can benefit from freshness, please read our guide to make the vacuum cleaner smell good.

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