Learn How to Fix Air Purifier with These 8 Powerful Tips

Using air purifiers for almost five years, I’ve faced nearly every problem an air purifier can throw at you. These common issues can keep your air purifier from performing at its best, from weak airflow to strange smells.

But don’t worry – mastering how to fix air purifier at home can save time and money and maintain indoor air quality. Whether you’re a beginner or a seasoned user, this article will guide you through troubleshooting common hurdles. Let’s breathe new life into those purifiers, shall we?


8 Common Issues With an Air Purifier and How to Fix

Before diving into fixing common issues, it’s crucial to understand the basic parts of an air purifier and how it functions. Familiarizing yourself with its components and working mechanisms will help you diagnose problems more effectively.

For an in-depth explanation, refer to my informative post on “How Do Air Purifiers Work” and continue reading to uncover common issues with air purifiers and how to fix them.

how to fix air purifier Not Turning On

Facing an air purifier that won’t turn on can indeed be frustrating. But often, the solution lies in simple checks and adjustments. Here’s a systematic approach.

Check Power Cord:

  • Inspect the power cord for any damages or disconnection. A simple oversight or a frayed cord could be the culprit.
  • Ensure the cord is securely plugged into both the air purifier and the power outlet. A loose connection could be preventing your purifier from turning on.

Investigate Electrical Outlet:

  • Is the outlet working properly? To test, plug another appliance into the same outlet.
  • The outlet could be the issue if the replacement appliance doesn’t power up either.

If you identify an issue with your electrical outlet, it’s best to seek professional help. Always prioritize safety when dealing with electricity.

An air purifier making strange noises can be quite an annoyance. But don’t worry; troubleshooting this problem is often straightforward.

  • Loose Parts: The first step is to check for loose parts. Something as simple as a screw or panel out of place might be causing those unusual sounds. Tightening them up could solve the issue.
  • Debris in the Fan: Friction noises could indicate debris lodged in the air fan. Regular maintenance, such as cleaning and vacuuming, can clear the debris from your air purifier.

Coming across an air purifier with unresponsive controls can leave you feeling a tad frustrated. Here are some potential causes and solutions to help you regain control.

Dusty or Damaged Buttons:

  • Dust, dirt, or debris may affect the buttons’ sensitivity. Gently clean them with a soft cloth to restore responsiveness.
  • Physical damage to the controls could also cause issues. Consider engaging a professional to assess repair options if cleaning doesn’t work.

Software-related Issues:

  • For smart air purifiers, the issue could be software-related. Resetting or updating the device’s firmware might resolve unresponsive controls.
Air Purifier Cannot Connect To Wi-Fi

Some smart air purifiers like Xiaomi allow you to control the devices from your smartphone. Here is how to fix it if your air purifier does not connect to the Wi-Fi network.

Check Connectivity Settings:

  • Start by checking the Wi-Fi settings on your air purifier. Ensure it’s set to connect to the right network and that your password is correctly entered.

Restart Your Home Network:

  • Restarting your home network can often resolve connectivity issues. Turn off your router, wait a few minutes, then turn it back on. Once the network is back online, try connecting your purifier again.

By following these steps, you can resolve most Wi-Fi-related issues and put smart features back at your fingertips.

Experiencing an overheating air purifier can be alarming, but solutions are at hand. The key factors to explore are cleanliness, air purifier position, and the electrical system.

Here is how to fix an air purifier that is experiencing an overheating:

  • Regular Cleaning: It’s vital to clean your air purifier regularly. An accumulation of dust and debris can cause it to overheat. Regular maintenance can ensure smooth airflow and prevent overheating.
  • Position of the Air Purifier: Improper positioning can cause it to work harder and overheat. Please refer to my “Best Location for Air Purifier” post for optimal placement tips.
  • Checking the Electrical System: Faulty wiring and other electrical issues can often cause overheating. If other solutions don’t work, it’s advisable to get the electrical system checked by a professional.

Addressing weak airflow in your air purifier involves a few essential steps, primarily concerning the filters and fans.

Filter Maintenance:

  • Cleaning and replacing filters are crucial, as blocked filters can significantly restrict airflow. Refer to my post on “Cleaning Air Purifier Filter” for detailed advice.

Checking the Fans:

  • Fans play a vital role in airflow. Inspect them for any dust build-up or debris impeding their function.

By maintaining the filters and fans of your air purifier, you can enhance its efficiency and ensure optimal air purification.

fix air purifier Fan when it Not Working

If the fan in your air purifier isn’t working, it can significantly impair the device’s efficacy. Here are some steps to diagnose the issue.

  • Check the Fan Motor: First, inspect the fan motor. It could be defective or worn out. If this is the case, you might need to get it replaced.
  • Assess the Fan Blades: Blockage or dust build-up in the blades can hinder the fan’s operation. Regular cleaning can ensure the blades spin freely.

A strange smell emanating from your air purifier can be quite problematic. The solution usually involves understanding the type of smell and addressing potential issues with the filter or overheating.

  • Assessing the Type of Smell: Bacteria or mold might cause a musty smell. On the other hand, a burnt smell could indicate overheating or an electrical issue.
  • Changing or Cleaning Filters: A dirty or overused filter could be the reason behind the odd smell. It’s recommended to replace or clean the filters regularly based on your device’s instructions.
  • Checking the Device for Overheating: An overheating air purifier may emit a burnt or hot smell. If you suspect overheating, refer to the “Air Purifier Overheating” section for solutions.

By addressing these specifics, you’ll return your air purifier to its odor-neutral state, allowing it to do its intended job – keeping your air clean and fresh.


How to Replace Broken or Faulty Parts

Sometimes, knowing how to fix some common issues of an air purifier is not enough. If some parts of your air purifier are broken or faulty, replacing them can help extend your device’s lifespan. Luckily, you can do some replacing tasks at home and save many service fees.

Here’s a step-by-step guide on how to replace the fan and filter in your air purifier:

Replacing the Air Purifier Fan

Step 1 – Safety First: Unplug your air purifier from its power source. That is important to avoid any electrical accidents.

Step 2 – Remove the Cover: Most air purifier models have a removable outer shell or cover. Refer to your product manual for specific instructions on how to remove it.

Step 3 – Remove the Old Fan: Once you’ve exposed the fan, carefully remove it from its housing. That usually involves removing some screws and possibly unplugging a connector link. Always refer to your manual for specifics to avoid damaging other components.

Step 4 – Install the New Fan: Insert the new fan unit into the housing. Secure it in place with the screws you removed and reconnect any connector links.

Step 5 – Reassemble the Air Purifier: Ensure everything is secure before reattaching the cover. Plug the device back in and test to ensure it now operates correctly.

Step 1 – Safety First: Always start by unplugging your air purifier.

Step 2- Access the Filter: Open the air purifier’s panel (usually on the back or the side) to reach the filter.

Step 3 – Remove the Filter: Carefully remove the old or dirty filter from the air purifier. That can typically be accomplished by gently pulling it out.

Step 4 – Insert the New Filter: Install the new filter in place of the old one, ensuring it fits snugly in its compartment.

Step 5 – Close the Panel: Once your new filter is in place, close the panel and ensure it is secure.

Step 6 – Test the Air Purifier: Reconnect your air purifier to the power source and turn it on to check if it works correctly.

Remember, while DIY replacements can save time and money, always consider professional help if you’re uncomfortable performing these tasks yourself to avoid causing further damage.


When to Seek Professional Help

How to handle when the air purifier fails

Do you know how to fix your air purifier if the above troubleshooting does not work? Well, there are instances when calling in the professionals is your best bet to ensure the longevity and correct operation of your air purifier.

If you notice persistent issues such as strange odors, overheating, constant loud noises, or if the device still doesn’t work properly after you’ve tried troubleshooting, it’s likely time to seek professional help. Also, a professional should immediately address visible signs of burn or damage due to electrical issues.

While basic maintenance and minor fixes can be done at home, a DIY approach of severe issues can inadvertently make the problem worse or damage the device. In addition, it can lead to potential safety hazards like electrical shocks.

Now, as an assistant who’s seen a fair share of DIY attempts gone awry, let me tell you – nothing beats the assurance of a professional’s touch, mainly when it’s about intricate hardware functionalities. They have the expertise and equipment to safely and accurately diagnose and fix problems. Entrusting your device to a professional can often save more time, money, and trouble in the long run.



FAQs about fixing air purifiers
Can an air purifier burn out?

Yes, an air purifier can burn out, typically due to overheating, electrical issues, or lack of regular maintenance.

How do I know if my air purifier is broken?

Signs that your air purifier might be broken include unusual noises, strange smells, overheating, or a noticeable decrease in air cleaning performance.

How do I know if my filter is clogged? What are the symptoms of a clogged filter?

Symptoms of a clogged filter include reduced airflow, increased noise from the fan working harder, and decreased purifying performance. Some air purifiers have an indicator light that signals when the filter needs to be changed.

What does a clogged air filter look like?

A clogged air filter often appears visibly dirty or dusty. It can have a greasy or sticky texture, depending on the pollutants in the air.

How do you unclog a filter?

To unclog a filter, remove it from the air purifier, clean it according to the manufacturer’s instructions, or replace it if it’s not washable. Always check the user manual for specific guidance regarding filter cleaning.

What will happen if the air filter is damaged?

If the air filter is damaged, your air purifier may not work efficiently, which could result in poor air quality. Additionally, a damaged filter could cause other air purifier components to wear out prematurely.



Understanding how to fix an air purifier can be crucial to maintain its effectiveness and prolong its lifespan. Every step is vital to keep indoor air fresh and healthy, from ensuring a clean and unclogged filter and replacing faulty parts to recognizing when professional help is needed.

Remember, a well-functioning air purifier not only cleans your air but also enhances your living environment.

If you found this guide helpful, don’t hesitate to share this information so others can benefit too. Learning to fix an air purifier is knowledge worth spreading!



Beryl, a Pharmacy graduate, combines her academic expertise with a passion for cozy homes at Hometoppicks. With 3+ years of experience in researching and testing household and home care products, Beryl manages related content at Hometoppicks. Trust in her meticulous nature and profound knowledge to provide reliable advice and product suggestions, ensuring your home remains comfortable and convenient. You can find more about her here.

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