How to Fix the Red Light on Your Humidifier

The red light on your dehumidifier can indicate that the water is low, that the water isn’t getting into the right reservoir, that the atomizer is dirty or the float switch is stuck.

Whether you have a Vicks, Crane, or HoMedics humidifier, all work similarly and you can find the fixes below.

Let’s get started.

Why is there a Red Light on Your Humidifier?

The water tank is low

The red light on your humidifier is indicating that the water tank has low levels of water.

Refill the water tank and the red light will turn green.

Water isn’t in the right reservoir

If you find that the water tank is full but the red light still stays on, then try tilting the machine upwards. The stuck water will make its way into the correct reservoir.

One indicator that it’s in the right place is that you can hear the water moving inside the humidifier, indicating the water is getting into the proper reservoir.

The water tank is overfilled

The water tank may also be overfilled, causing the water sensor to malfunction.

If this is the case, try to empty some water and the light should turn green.

You need to clean the atomizer

If you aren’t using the right type of water in your humidifier, over time mineral deposits can begin to form.

Open your humidifier and find the atomizer, if it’s dirty, take a brush and clean it out.

You can also use a dab of soap to clean it thoroughly, but make sure to wash it out before turning your humidifier back on. Let your atomizer dry fully before using.

Floater is stuck

Hard water can cause mineral deposits to form on the floater, which signals the humidifier to turn on and off.

Unplug your humidifier, and brush around the floater with warm water and soap, and a Q-tip.

Make sure you wash out all the soap and let it dry thoroughly before turning your humidifier back on.

Put some water in the base where the floater is located and see if it floats. If so, the red light should turn off.

Too much humidity in the internals

If you leave your humidifier on for too long, it can cause the circuit board to get too humid to operate.

If you feel like this is the cause of your humidifier’s red light, then empty all the water and let your humidifier dry out completely for a few days.

How do I reset my humidifier?

To reset your humidifier’s flashing red button, hold the red reset button on the front of your humidifier for 5 seconds. The reset and clean light should turn off.

If that doesn’t work, try unplugging for a few seconds and then plug it back in and turn it on.

Why does my humidifier turn red?

If your humidifier is turning red, this is a sign that you have an issue with pink mold.

You must use the right type of water in your humidifier otherwise you may be introducing mold spores into your humidifier’s tank.

It’s important to clean your humidifier at least once a week to prevent any mold and mildew from growing inside of the tank.

The water in the tank can also turn black if you don’t use the right type of water.

Final Thoughts

It can be frustrating to fix the red light on your dehumidifier, but you should be able to fix it by cleaning the internals, letting it dry out, resetting your humidifier, or by making sure the float switch is unstuck.

About Roy Cohen

Roy Cohen has a burning passion for heating, cooling, and ventilation. He aims to help you save money on expensive repairs and bring you the best HVAC products. He has years of experience behind him in HVAC repair and garage maintenance.

You can find Roy at his LinkedIn or his email: [email protected]

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