Blinking Red Light on Your Winix Air Purifier? Here’s What You Need to Do

Winix air purifiers are designed to clean the air in your room, making it fresh and free from dust, pollen, and other pollutants.

These devices are smart and use different lights to tell you what’s happening. Sometimes, you might see a red light blinking. This can make you wonder what’s wrong.

In this post, we’re going to find out why the red light might be blinking on your Winix air purifier.

Why Red Light Blinking on Winix Air Purifier

A blinking red light on your Winix air purifier usually indicates a filter issue. Depending on the model and the specific blinking pattern, it could mean different things:

Filter Replacement Time

When you see the red light blinking on your Winix air purifier, it’s probably telling you the HEPA filter needs a change. This filter is very important because it catches all the tiny dust and things in the air that can make you sneeze or feel bad. Winix air purifiers have a special light that turns red to let you know it’s time to replace the filter.

This usually happens every 12 to 18 months, depending on how much you use the purifier. Always check your guide book that came with the purifier to know exactly when to change the filter.

Don’t Forget the Pre-Filter

The pre-filter is like the first guard that stops big stuff like dust and hair from getting into the main filter too fast.

If this gets too dirty, the air can’t move through as it should, and that might make the red light start blinking. It’s a good idea to clean this pre-filter every 2 to 4 weeks.

You can use a vacuum cleaner or a soft brush to clean it, and sometimes you can wash it with warm water. Just make sure it’s totally dry before you put it back in.

Other Filter Woes (Less Common)

Sometimes, the red light could be about other filters, like the carbon filter which helps with smells, or the odor control filter. These don’t usually cause problems as much as the HEPA or pre-filter, but they can still be the reason for the light. If cleaning and replacing the main filters don’t turn off the red light, you might need to look at these filters.

The best thing to do is to look in your purifier’s manual to see what to do or call Winix’s helpline for advice.

What should you do if Red Light Blinking on Winix Air Purifier

Seeing a red light blinking on your Winix air purifier might make you worry, but it’s usually just telling you something needs checking with the filters.

Decode the Filter SOS

HEPA Filter Replacement: This is the most common reason. The HEPA filter, your air quality champion, needs a fresh start! Check your user manual for replacement intervals (usually 12-18 months) and get a new filter specific to your model.

Pre-Filter Needs TLC: This “bouncer” filter traps large particles before they reach the HEPA filter. Clean it regularly (every 2-4 weeks) with a vacuum or soft brush. If it’s excessively dirty, rinse with lukewarm water (ensure it’s completely dry before reinserting).

Other Filter Issues (Less Likely): In rare cases, the carbon or odor control filters might be the culprit. Refer to your manual for troubleshooting or contact Winix support.

Silence the Red Light Flash with these Steps

User Manual is Your Ally: Find your specific model’s guide online or on the Winix website. It deciphers blinking patterns and guides you through filter handling.

Replace the HEPA Filter: If the replacement light is on, or it’s been over a year, invest in a new filter!

Clean the Pre-Filter: Regular cleaning maintains optimal airflow and protects your HEPA filter.

Reset the Filter Light: Many Winix models have a button or reset hole. Refer to your manual for the specific method.

Prevent Future Blinking with these Pro Tips:

1. Filter Reminder Program: Never miss a replacement again! Subscribe to Winix’s program for timely alerts.

2. Monitor Air Quality: High pollution stresses your filters. Regular monitoring helps schedule replacements proactively.

3. Seek Winix Support: If the red light persists after these steps, their experts can diagnose the issue further.


1. Why is the red light blinking on my Winix air purifier?

The red light usually blinks to tell you there’s something going on with the filters. It might mean your HEPA filter needs replacing, the pre-filter needs cleaning, or there’s an issue with another filter like the carbon or odor control filter.

2. How often should I replace the HEPA filter in my Winix air purifier?

You should replace the HEPA filter every 12 to 18 months, depending on how much you use your air purifier. Check your user manual for the exact interval for your specific model.

3. What should I do if the red light on my Winix air purifier starts blinking?

Start by checking your filters. Replace the HEPA filter if it’s due, clean the pre-filter with a vacuum or rinse it if necessary, and check other filters for any issues. Don’t forget to reset the indicator light once you’re done.

4. Can I still use my Winix air purifier if the red light is blinking?

While the purifier can still run, the blinking red light indicates that it might not be working as efficiently as it should. Addressing the filter issue promptly will ensure your air purifier continues to operate effectively.

5. What should I do if replacing and cleaning the filters doesn’t stop the red light from blinking?

If the red light persists after you’ve replaced and cleaned the filters, consult your user manual for troubleshooting tips or contact Winix customer support for further assistance. They can help diagnose and solve more complex issues.

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The author is an Air purifier expert with overall knowledge of air and ionizers.