Why Is There A Red Light On My Homedics Humidifier?

The Homedics humidifier is a popular choice for many individuals for its affordability and efficiency. This appliance uses advanced engineering to provide excellent, moisturized air to homes and offices.

Although Homedics humidifiers are excellent products, each model comes with a line-up of advanced features, displays, lights, and built-in warning technologies.

These features may get you puzzled at first, and when you notice a red light on your humidifier, you may want to find out what it means. 

Your Homedics humidifier’s red light alerts you of low water levels. While a low water level is the most common reason the red light turns on, a red light can also indicate a malfunctioning part or dirty humidifier. Besides, depending on the model, the red light may be one of the nightlight color features.

What Does the Red Light on the Homedics Humidifier Signify?

Why Is There a Red Light on My Homedics Humidifier

When a Homedics humidifier red light turns on, it alerts the owner of a problem with the appliance.

But this is not always the case, some models may have a nightlight feature, and the red light may be one of the color options.

Also, the red light may malfunction and pop on without the humidifier having issues.

The Homedics Humidifier has several lights and displays to show the device’s status. When the red light is on, it usually signifies a low water tank.

When you fill the tank, this light will change to green to indicate it has enough water to function normally.

The red light also signifies the humidifier needs cleaning. So, you will need to clean the humidifier to get it functioning correctly.

A low water tank or dirty humidifier isn’t the only reason the red light turns on a Homedics humidifier. It could also mean a part of the device isn’t functioning correctly.

Also, the red light may begin blinking if the UV-C bulb is damaged and needs replacement. 

How Do I Reset My Homedics Humidifier?

If the red light on your humidifier stays on after cleaning or filling up the tank, resetting the system should be the next option.

Resetting your Homedics humidifier can turn off the red light and get the device operating correctly again.

You can reset your Homedics humidifier in two ways. 

#1. Cut Power Supply to the Humidifier

Cutting the power supply to the Homedics humidifier is the easiest way to reset the device.

To do this, follow these steps:

  • First, unplug the system from the socket or remove the batteries.
  • Wait about 15 minutes for the internal components to cool before plugging the device into the wall outlet or adding the batteries.

#2. Use the Reset Feature

Most models of Homedics humidifiers have a reset feature on the power dial. To perform a full reset, do the following:

  • Move the power dial to the reset option
  • Unplug the humidifier from the power socket 
  • Wait for a few minutes, then plug back the humidifier before turning the power knob to its highest setting 

Why Won’t the Red Light on My Homedics Humidifier Turn Off?

There are different reasons the red light on Homedics humidifiers won’t turn off.

If, after refilling the tank and cleaning the humidifier, the light remains on, then you’ve to check for faulty parts and reset the device.

Below are the primary reasons your Homedics humidifier red light won’t turn off and the solutions:

#1. Humidifier Is Low on Water 

Humidifiers operate by changing water into vapor which saturates the air with water molecules. And when this device is operating, it detects the water level with a sensor.

When the water level drops, the Homedics humidifier won’t be able to create a mist to saturate the air, and this causes the red light to turn on.

If the Homedics humidifier continues to operate with a deficient level of water, it can cause damage to the device. Moreover, the appliance can break if you continue to run it on an empty tank.

You’ve to refill the reservoir immediately to prevent damage to your system. To refill the reservoir, follow these steps:

  • Power off your humidifier and unplug it from the wall socket. 
  • Remove the water reservoir and refill it with fresh water. Ensure you don’t overfill it.
  • Return the tank to its base and screw it in tightly before you turn on the system.

#2. Fan Not Working Properly 

If the humidifier’s fan is not working correctly, it won’t create mist, and it can lead to further damage to the system.

When you notice a red light, you can check to see if the fan blades are working correctly. Moreover, a dirty humidifier and filter can clog the air passage and stop the fan from working.

Frequently cleaning your humidifier can prevent this. To check for a faulty fan, do the following:

  • Power off the humidifier and unplug it from the power source.
  • Uncover the device reservoir and check the fan blades with a flashlight.
  • You must clean them if they’re not turning well due to dirt.

Below is a table showing other possible causes why the red light on your humidifier won’t turn off, the symptoms, and how to fix it.

How Do You Clean a Homedics Humidifier?

There are a lot of parts of the Homedics humidifier that can malfunction when the appliance is dirty.

Therefore, continuous device use without cleaning it can severely damage the system.

Moreover, the red light warns that the humidifier may need cleaning, and you should not ignore it.

Below are the steps to follow in cleaning your Homedics humidifier:

#1. Power Off Humidifier and Unplug

Ensure to power off your humidifier and unplug it from the wall socket. This safety measure is necessary to avoid tripping any sensor and water into the wrong places.

#2. Remove the Water Tank

Carefully remove the water tank and uncover it. Then drain the tank of water while partially covering the tank opening with a finger to get the demineralization cartridge and prevent it from breaking.

#3. Drain Water From the Humidifier Base

  • Keep the power cable far from the sink to avoid water touching it.
  • You will see an arrow pointing to where you should pour the water. 
  • Lower the base in the direction the arrow points and pour out the water. 

#4. Soak Reservoir In Vinegar/Water Solution

Vinegar can clean your water reservoir and helps soften and remove mineral deposits and germs that might have been collected inside.

  • Make a solution with equal parts water and white vinegar.
  • Fill the reservoir with the solution.
  • Allow the solution to sit for 15-30 minutes.
  • Shake solution after to clean the tank, then rinse thoroughly with water and set aside.

#5. Clean the Transducer and Ring

It would help if you also used a vinegar solution to clean the transducer.

  • Turn the back of your humidifier and then find the small cover near the bottom. You will see an arrow pointing towards you.
  • Expose the transducer by turning the handle of the cover to remove it
  • Prepare a solution of equal parts white vinegar and water.
  • Dip a piece of cotton wool into the solution and wipe the black ring inside the transducer to remove mineral deposits. Also, clean the area surrounding the ring. The ring should look shiny after cleaning.

#6. Clean the Hinged Floats

Next, you’ve to clean the hinged floats to remove any mineral deposits to enable them to move freely. Again, use the same white vinegar solution.

#7. Clean the Humidifier Base

The humidifier needs to be free of mineral accumulation.

  • Put a tablespoon of the vinegar solution on the base and wipe with a piece of cotton wool. It should feel smooth once it’s clean. 
  • Next, rinse the base thoroughly with clean water. Make sure you lower it in the right direction to pour off the water. 
  • Wipe the surface with a paper towel, especially the area close to the power cable. Also, clean the power cable itself.
  • Fix back the transducer cover and keep the base aside.

#8. Refill and Reattach the Reservoir

  • Refill the tank with freshwater, then put in the demineralization cartridge. Check to see if the cartridge is moldy. You need to replace it if it’s.
  • Reattach the water reservoir to the humidifier base and fix back the caps.

#9. Reset Your Humidifier

First, ensure the power cord isn’t wet before you plug in your humidifier. Then reset the device; the red light should turn off after resetting.


Your Homedics humidifier’s red light will turn on to signify low water and a dirty device. Cleaning and refilling the device should turn off this light.

However, suppose the red light refuses to turn off after cleaning and refilling; in that case, you’ll have to troubleshoot the system for further problems. Then, you should call a professional for repair.

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