Homedics Air Purifier Blinking Red Light? (8 Easy Fixes)

Homedics air purifier blinking red light can be concerning, as it’s not immediately clear what the issue is.

When this light starts blinking, it tells you there is an issue with your filter efficiency.

You might not always need to replace the filter with a new one after trying some of our fixes.

To fix your Homedics air purifier’s red light blinking, check for mechanical issues and test the device in a different room. Next, service the filter, power cycle the device, and check the sensors.

Now that you have a rough idea of the fixes, let’s try to understand the causes behind it.

Why Does The Homedics Air Purifier Blink Red?

The red light indicator on most Homedics air purifier models is a notification or reminder that your filter needs to be replaced.

However, this notification light can sometimes be caused by other factors or filter issues.

Here is a list of the most common causes for Homedics Air purifier blinking red:

• Filter Replacement Needed
• Sensors Issues
• Internal Software Errors
• Blocked Vents or Intake
• Improper FIlter Seating
• Mechanical Part Malfunction

Now that you are fully aware of the most frequent causes let’s dive into the actual troubleshooting!

How to Fix Homedics Air Purifier Blinking Red Light

Tip: You can periodically hear popping noises if your air purifier has an ionizer, which is normal.

1. Check for Mechanical Issues

One of the first steps is to perform a general assessment of your Homedics air purifier for any hardware damage.

If your purifier has a damaged fan, for example, it might trigger a warning light as it struggles to intake air.

Here are some general guidelines on checking your Homedics air purifier for damaged components: 

1. Listen for unusual sounds when the purifier is on, which may indicate a mechanical problem.
2. Inspect the fan and other moving parts for visible wear, obstructions, or damage.
3. Remove the filter panel and verify your pre-filter or filter is positioned appropriately.
4. Reassemble, plug in, and power on the device.

Tip: Unusual noises can be a sign that some foreign object fell through its fan cover.

2. Test in a Different Location

Suppose your Homedics air purifier is in a room with temperature extremes or poor air quality.

In that case, your Homedics filter might get depleted and cause a red light to appear.

To prevent this, you must ensure your environment is optimal for operation.

Here are some ways to ensure your Homedics air purifier is in an optimal environment:

1. Relocate the air purifier to a different room or location.
2. Ensure it’s placed on a level surface and away from direct sunlight or heat sources.
3. Plug in and turn on the purifier.
4. Let it run for a while to see if the problem persists.
5. If the issue is resolved, the original location may have been problematic (e.g., near an electronic device causing interference).

Tip: External factors in a purifier's immediate environment can sometimes cause it to malfunction.

3. Check for Electrical Issues

A faulty power supply can cause your Homedics air purifier to trigger a false red warning light.

To prevent this issue, it’s essential you ensure there are no issues with its power supply.

Here is how to ensure your Homedics air purifier power is in order.

1. Turn off the Homedics purifier.
2. Unplug it and inspect the plug for damage.
3. If you notice the power cable has frayed, it’s best to replace it with a new one.
4. Check the power outlet by plugging in another device to see if it’s working.
5. Use a surge protector if possible.
6. Afterward, plug the purifier back in and check if there is still a red light.

Tip: Electrical fluctuations or damaged plugs can cause unexpected device behaviors.

4. Ensure Proper Seating of the Filter

Sometimes, if you replaced your filter recently for your Homedics air purifier if it’s not fitted correctly, it can cause a filter replacement light to start blinking.

To prevent this issue from occurring, you can go through the filter installation.

Here is how to ensure your filter is fitted correctly into your Homedics device:

1. Turn off the air purifier and disconnect it from the power outlet.
2. Remove the filter cover and take out the filter.
3. Place the filter in again and ensure it is aligned properly and sits correctly within its compartment.
4. Most circular filters will snap into place to indicate they are correctly placed.
5. Close the panel and turn the purifier back on.

Note: An improperly seated filter can cause the unit to malfunction.

5. Power Cycle Your Air Purifier

Homedics air purifier’s red blinking light can sometimes be due to static electricity buildup.

This is because as particles flow through it, they contain a charge that can build up on its electronics and cause sensor errors.

Here is how to power cycle your Homedics air purifier properly:

1. Unplug your Homedics purifier from the electrical outlet.
2. Wait for about 60 seconds so any static gets discharged. 
3. Plug it back into the outlet and turn on your air purifier.

Suppose the light is still blinking; press and hold the filter replacement button for at least 3 seconds.

Afterward, check if the blinking red light is gone.

Tip: Resetting the filter indicator can help when you've just replaced the filter, but the light remains on.

6. Clean or Replace the Filter

To ensure your Homedics filter is running optimally, it needs a clean filter or one that still has not depleted its carbon filtering ability.

A red light might occur because your purifier is struggling to take in the air due to filter congestion.

Here are the general steps to clean or replace the filter (might vary depending on your model):

1. Turn off the Homedics air purifier and unplug it.
2. Open the back or side panel to access the filter compartment.
3. Remove the filter by gently pulling it away from the base.
4. Use a vacuum cleaner for the HEPA filter, or clean with a soft brush.
5. Reinstall the filter, fit the side panel, and turn the purifier back on.

Tip: Never use any liquid to clean a HEPA-type filter, as it will degrade its carbon content. 

7. Check if The UV Light Needs Replacement 

Some Homedics air purifiers have a feature that uses UV light to remove harmful bacteria from the filter.

On some models, a red light can indicate that this UV light bulb needs replacement. 

Here are the steps to ensure your Homedics air purifier has a working UV light:

1. Turn off and unplug the unit, then wait 2-3 minutes for the UV bulb to cool down.
2. Inspect the intake and exhaust vents.
3. Remove the side panel and filter of the Homedics device to access the UV bulb department.
4. The department is usually underneath the filter on most models and is secured by two screws.
5. Remove the screws and remove the plastic cover for the UV light bulb.
6. Inspect the UV light bulb; if you notice it’s damaged or burnt out, it’s due for replacement.
7. Carefully remove the UV light; avoid touching it with your fingers, and install the new one.

After these steps, reassemble your Homedics air purifier and check if the red light is gone now.

Note: Keeping vents clear ensures efficient airflow and reduces strain on the motor.

8. Inspect and Clean the Sensors

Encountering the Homedics air purifier’s red light blinking can be due to an issue with the sensors.

Dust or grime on sensors can cause them to provide inaccurate readings or show false alerts.

To ensure this is not the case, you need to check if they are clear.

Here is how to clean your Homedics air purifier sensors:

1. Disconnect your Homedics purifier from the power outlet.
2. Look for the air quality sensors on your device, usually found near the intake vent.
3. Use a soft cloth slightly dampened with isopropyl alcohol to clean the sensors gently.
4. After the sensors are dried, plug in and power on your device.
5. Check if the red light indicator is active again.

Note: If your sensors are placed too close to furniture or any other surface, they can create a false reading.

Quick Recap

Homedics air purifier blinking red light can be caused by a burnt-out UV light or a dirty or depleted filter.

To fix this issue, ensure your device is clean and power cycle it for optimal use.