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Troubleshooting

Q:I hear the fan turning, but I don’t see any mist. Is my humidifier operating properly?

A:Dry air is pulled through the system and a fan disperses invisible, moisture balanced air. There is no “mist” emitted. When operating normally you will feel only cool air coming from the unit. Monitor the water level in your Tank/ Base. If you notice a decrease in the Water Tank over 24 hours then the unit is operating normally.

Q:My unit has been running for several hours. I hear the fan spinning, but I do not notice the water level in the tank decreasing.

A:First, check the filter to ensure it is wet. If the pad appears dry, remove it from the Base and gently rinse under cool water. Reposition wet filter in the Base. You may also want to note the current moisture level in your home. If the humidity level is over 60% the unit will not put out much moisture as your air is already saturated.

Q:The humidifier is not running (the fan is not even spinning), but all (or some) of the lights are on. (Model HCM-630)

A:If the Desired Humidity light is ON: The Advanced Mist™ Humidistat knob may be set too low. Moving

the knob clockwise to the end should restart the unit.

Q:The Advanced Mist™ Humidistat knob was set according to the manual, but the humidifier never seems to turn back on. Is something wrong? (Model HCM-630)

A:The Humidistat knob may be set too low. Moving the Humidistat knob to the end clockwise should restart the unit.

Q:The Advanced Mist™ Humidistat knob was set according to the manual, but the humidifier never seems to turn off. Is something wrong? (Model HCM-630)

A:The Humidistat knob may be set too high. Reset the Advanced Mist™ Humidistat knob following the instructions under FEATURES.

Q: My filter has turned light brown and rust colored. Do I need a new filter?

A:Probably not. Since your filter has been made with Protec™ antimicrobial the change in color indicates only a mineral deposit. Soak filter in a sink full of cool water to help break up deposits. The discoloration may remain but will not affect the humidifier’s performance.

Q:My humidifier doesn’t appear to be as clean as when I first purchased and/or I’m smelling an unpleasant odor. What should I do?

A:You probably need to replace your Protec™ Cleaning Cartridge. This cartridge helps your humidifier stay cleaner, longer and helps freshen the mist. If you have been using your humidifier regularly for over 30 days replace the Protec™ cartridge and follow the cleaning instructions.

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Honeywell HCM-630, HCM-650, HCM-646, HCM-645, HCM-640BW, HCM-635 owner manual Troubleshooting
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HCM-650, HCM-635, HCM-640BW, HCM-645, HCM-646 specifications

Honeywell is a well-respected name in the manufacturing of humidifiers, with models like HCM-645, HCM-635, HCM-646, HCM-650, and HCM-630 standing out for their superior performance and innovative features. Each of these models caters to different needs and preferences while ensuring a comfortable indoor environment.

The Honeywell HCM-645 is designed with both convenience and efficiency in mind. It features an easy-to-fill large water tank that can hold about one gallon of water, providing up to 24 hours of continuous operation on a single fill. Its evaporative technology ensures that humidification is natural, helping to maintain optimal humidity levels without over-saturating the air. The HCM-645 also has a built-in wicking filter that captures impurities, ensuring clean moisture is released into the room.

Similarly, the Honeywell HCM-635 brings robust features to the table. One of its standout characteristics is its adjustable humidity settings that allow users to customize their comfort level. This model also employs a quiet operation feature, making it ideal for bedrooms or offices. With its compact design, the HCM-635 is both functional and space-saving, catering to smaller rooms without compromising on performance.

The HCM-646 exemplifies advanced technology with its auto shut-off feature, which activates when the water level is low. This ensures safety and preserves the longevity of the unit. Additionally, the HCM-646's design promotes easy maintenance, allowing users to clean the unit with minimal hassle. Its large tank capacity enables extended use, making it suitable for larger spaces.

For those who prioritize features and ease of use, the HCM-650 stands out. It integrates a digital display that provides real-time humidity readings and settings adjustments at a glance. This model also employs antimicrobial technology within the wicking filter to minimize the growth of mold and bacteria, ensuring healthier air quality. The HCM-650’s modern aesthetic makes it a stylish addition to any room.

Lastly, the Honeywell HCM-630 offers a blend of functionality and user-friendly design. It is equipped with an adjustable humidity output, allowing customized control over moisture levels in your space. Known for its durability, this model boasts a robust construction that ensures reliable performance over time.

In conclusion, Honeywell’s HCM series offers a variety of humidifiers that incorporate advanced technology, user-centric features, and an emphasis on clean air. Whether you are looking for a compact solution or a feature-rich unit, Honeywell has a model to meet your needs, ensuring comfort and health in every room.
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