Honeywell Air Purifier Troubleshooting (Top 11 Problems)

  • Author: Irene Batres
  • Date: March 27, 2023
  • Time to read: 6 min.
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Is something wrong with your Honeywell? 

Honeywell air purifiers are known for being reliable machines. However, they can experience issues from time to time.

So below, I put a collection of the most common issues and how to fix them quickly. Read through to discover the answers to your questions.

Here are our top Honeywell air purifier troubleshooting tips… 

Why Did My Honeywell Air Purifier Stop Working?

There could be a few reasons your air purifier stopped working.

Here are some:

A Bad Filter

Your air purifier’s filter does a lot of work to clean the air. If it gets clogged with dirt and debris, your filter will not be able to do its job.

So you might want to check the filter and make sure it is clean. You may need to replace it if it is too dirty.

A Broken Motor

The air purifier’s fan might have been damaged or may not be working at all. So you will need to replace the blades with a new one, or if that doesn’t work, find an electrician who can fix it for you.

A broken motor will also cause a high-pitched sound when you turn your Honeywell air purifier on.

Unplugged Cord Or Blown Fuse(s)

Your plug could have been pulled out of the outlet by accident, or if you had an electrical surge, then one or more fuses could be bad.

It’s worth checking both possibilities before replacing anything. You can also try moving the cord back into place with care so that no wires are stretched too tightly while you’re doing this.

Improper Installation

Sometimes, it may happen that you did not install your air purifier correctly.

So you might want to check the installation before anything else or reach out for help from our customer service team.

You can also go through the manual and make sure you followed the installation instructions correctly.

There are also different Honeywell air purifiers requiring specific installations, so it’s worth checking if your model might need a special installation process.

The Air Purifier May Be Too Close To A Heat Duct

Placing your air purifier too close to a heat duct might cause it to overheat and shut down. Try moving the air purifier away from vents or other sources of extreme temperatures.

You Have Too Many Devices On Your Circuit Breaker

If you are running low on power, this is one potential reason your device may not be working properly.

Ensure that the amount of electricity provided by your outlet’s current capacity matches what you need so you don’t overload the circuits in your home.

You can also contact an electrician if needed to help diagnose any electrical issues at home where there could be multiple causes.

How Do You Reset A Honeywell Air Purifier?

To reset your Honeywell air purifier, you need to press the reset button on your unit’s control panel.

If there is a power outage and when it comes back, try flipping the breaker switch off before turning on your air purifier again.

To Replace A Fuse: flip the circuit breaker off, then unscrew the cover plate with a screwdriver or Allen wrench that came with your device.

Remove any burnt-out fuses using needle nose pliers and put in a new one of the same amperage.

Replace Blown Motor: You will need an electrician for this job but if they determine that the problem was not due to anything electrical, then contact our customer service team for help replacing just the blade assembly.

Honeywell HPA300 Won’t Turn On

If your Honeywell HPA300 doesn’t turn on, it could be because of a few reasons, which include:

  • A bad fuse
  • The air purifier has overheated
  • Improper installation
  • An unplugged cord
  • A burned-out fan
  • You have a power outage
  • You may have problems with the electrical wiring

These are some of the issues that can make your air purifier not turn on.

Luckily you can correct them by yourself, as discussed above or you may want to call in an electrician to help you.

How Do I Reset The Filter Light On My Honeywell Air Purifier?

Hold the reset button on the control panel for 5 seconds to reset the filter light on your Honeywell air purifier. If this doesn’t work, turn off the power, wait 30 seconds and turn it back on.

If the filter light is still not reset after doing this, contact your customer service team for help.

Honeywell Air Purifier Keeps Shutting Off

Honeywell Air Purifier Keeps Shutting Off

There are few reasons this happens:

Clogged Filters

If your filters are clogged, your air purifier is not going to be able to run as long before it shuts off. Try checking the filters and cleaning them if needed.


If you suspect overheating, try turning the air purifier in a colder environment and see if it still shuts off.

If it does, then there is a chance that the air purifier might have been installed too close to a heat duct or an electrical fault. The device may be plugged into faulty power wiring or circuit breaker.

Double-check your home’s electrical wiring and circuits, as they could be an issue for why it keeps shutting off in our devices. You want to call in a technician for professional help.

Manufacturing Defects

If everything else looks good, then there could be a manufacturing defect.

This means you need to contact customer service to schedule an authorized technician or have it replaced.

How Do I Clean My Honeywell Air Purifier?

How Do I Clean My Honeywell Air Purifier?

To clean your Honeywell air purifier, you need to remove the filter for a deep clean.

Wash it with warm water and dish soap, or use our recommended replacement filter cleaner specifically made for your device.

Spring is the best time of year to do this since this will help collect dust particles before they get circulated in your home all season long.

You can also just use a vacuum cleaner and reinstall the filter before putting it back into your device.

Honeywell Air Purifier Error Codes

The error codes that your Honeywell air purifier might be giving you are because there is a problem with the device. They may also be due to a problem with the power cord or electrical wiring.

Code E-01: This is due to a blown fuse, which can be replaced as discussed above in our troubleshooting guide.

Code K-05: If you have this code, your air purifier might need servicing by an authorized technician because it won’t turn on or off.

Code E-02: This code means the air purifier is overheating. If this keeps happening, try turning it off and leaving it in a colder environment or call an electrician for help to see if there’s faulty wiring going on.

Code L-05: If you have this error code, your device might not be working because of a blown fuse or power outage.

Code L-07: This error code is related to the electrical wiring, and you need professional help to fix it.

You can try to contact customer service for help, but if they cannot troubleshoot it, you need an authorized technician or replacement of the product needed.

Honeywell Air Purifier Red Light Won’t Go Off

This may be due to a faulty power cord, which can be replaced as discussed above in our troubleshooting guide. It may also indicate a manufacturing defect.

Contact customer service for help or an authorized technician to replace the product if they cannot fix it.

Honeywell Air Purifier Orange Light; What Does It Mean?

A smart sensor in your air purifier senses levels of air pollution in your house or room, and the LED light changes accordingly.

When it turns yellow or orange, it means the room is moderately polluted. Red means highly polluted, and a blue light indicates you have clean air.

Honeywell Air Purifier Filter Status Won’t Reset

If the filter status doesn’t go off, there could be a power cord or electrical wiring problem.Try pressing and holding the filter reset button for about 5 seconds to see if it fixes the issue.

As mentioned above, you may also have a manufacturing defect and need to contact customer service for help.

Final Thoughts – Honeywell Air Purifier Troubleshooting

Most Honeywell air purifiers will work just fine without any problems. However, sometimes you may experience a few minor problems.

Hopefully, this guide will help you solve some of those issues on your own.

If you experience any major problems that won’t go away, feel free to contact customer service, and they will do their best to help.

Looking For Air Purifier Guides?

If you’re looking for more air purifier resources, consider checking out our other posts on air purifiers.

irene mills author of freshairdevices


Irene Batres is eager to help others create an indoor allergen-free home. She has years of experience testing out air purifiers, dehumidifiers, and other products designed to help with indoor air quality. Learn more about me.