Honeywell Humidifier HWM440WC Manual

The Honeywell HWM440WC is a warm mist humidifier designed to add comfortable moisture to dry air in medium to large rooms. It features a 1-gallon tank capacity, adjustable humidity control, a medicine cup for inhalants, an auto-shutoff function when empty or removed, an easy-to-clean design, a night light, and a filter-free operation. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Water Tank, Base Unit with Heating Chamber, Control Panel, Medicine Cup, Night Light, and Power Cord.

Installation & Setup

Unpack and inspect all parts. Place on a stable, level, waterproof surface.

1. Remove tank: Lift tank off base unit by the handle.
2. Fill tank: Turn tank upside down, remove cap, fill with cool, clean tap water. Replace cap securely.
3. Place tank: Set tank upright on a flat surface, then place back onto base, aligning properly.
4. Position unit: Place humidifier on a stable surface at least 12 inches from walls and furniture.
5. Plug in: Connect power cord to a 120V AC outlet.

WARNING! Use only cool water. Do not use hot water or add oils directly to water tank. Keep cord away from heated surfaces.

First-Time Use

Before first use, clean tank and base as described in Cleaning section.

1. Ensure unit is unplugged and tank is filled with cool water.
2. Place tank securely on base.
3. Plug power cord into outlet. The power indicator light will illuminate.
4. Turn control dial to desired setting (Low for quiet operation, High for maximum mist output).
5. Mist will begin to emit from the outlet after a brief warm-up period.
6. To use medicine cup: Add inhalant to cup, then insert into designated slot on base.

CAUTION! Never operate without water. Do not block mist outlet. Place out of reach of children and pets.

Specifications

• Model: HWM440WC (White Cool Mist version also available as HWM440).
• Tank Capacity: 1 gallon (3.8 liters).
• Room Coverage: Up to 400 square feet (medium to large room).
• Run Time: Up to 24 hours on low setting.
• Mist Output: Adjustable, warm mist.
• Power: 120V AC, 60Hz.
• Power Consumption: 200W (max).
• Dimensions (approx.): 11.5" H x 10.5" W x 7.5" D.
• Weight (empty): 4.5 lbs.
• Features: Adjustable output, auto shut-off, night light, medicine cup, filter-free.

Controls and Operation

Control Panel located on front of base unit.

Main Controls: Power Indicator Light (blue), Control Dial (turns unit On/Off and adjusts mist output: Low - High).

Operation: Turn dial clockwise from "OFF" to "LOW" or "HIGH" to start. Mist output will begin shortly. The night light turns on automatically when unit is operating. To turn night light off, a separate switch may be present on some models (if not, it is always on during operation).

Medicine Cup Use: Add inhalant (liquid drops or pad) to the small cup. Slide cup into the slot on the front of the unit. Mist will carry the soothing vapor into the air.

Adding Water & Medicine Cup

Refill when tank is empty or output decreases.

1. Unplug unit from outlet.
2. Lift tank off base by the handle.
3. Carry tank to sink. Turn upside down and twist cap counterclockwise to remove.
4. Fill with cool tap water up to the "MAX" fill line. Do not overfill.
5. Replace cap securely by twisting clockwise.
6. Place tank back on base, ensuring it is seated properly.
7. Plug in and turn on.
8. For medicine: Add inhalant to cup, insert into slot. Replace cup every 24 hours or as needed.

Tip: Use distilled or demineralized water to minimize white dust if it occurs, though not required.

Cleaning & Maintenance

Clean every 1-2 weeks during use, or if mist output decreases. More frequent cleaning may be needed in hard water areas.

1. Unplug and empty all water from tank and base.
2. Tank Cleaning: Fill tank with a mixture of 1 teaspoon white vinegar and 1 gallon water. Swirl and let sit for 20 minutes. Scrub interior with soft brush. Rinse thoroughly with clean water.
3. Base Cleaning: Wipe exterior with a damp cloth. For mineral deposits in heating chamber, pour a cup of vinegar into the base, let sit for 20 minutes, then scrub with a soft brush. Rinse thoroughly.
4. Medicine Cup: Clean with mild soap and water. Rinse well.
5. Dry all parts completely before reassembling and storing or using.

WARNING! Never immerse base unit, cord, or plug in water. Do not use abrasive cleaners or brushes.

Safety Features

Auto Shut-Off: Turns off heating element when water tank is empty or removed, preventing damage or fire risk. Cool-Touch Exterior: Base remains cool to the touch during operation. Tip-Over Protection: Unit is designed to minimize spillage if tipped, but always place on a stable surface.

Care & Storage

When not in use for extended periods:

1. Unplug unit.
2. Empty and thoroughly clean tank and base as described.
3. Allow all parts to air dry completely.
4. Reassemble and store in original box or protective cover in a cool, dry place.

CAUTION! Never store with water inside. This can lead to mold or mineral buildup.

Regulatory Information

This humidifier complies with FCC Part 15 and relevant safety standards. Copyright © Honeywell International Inc. Honeywell and the Honeywell logo are trademarks of Honeywell International Inc. For support, visit www.honeywellpluggedin.com or contact Honeywell Customer Care at 1-800-332-1110.

Troubleshooting

Reset: Unplug unit for 10 minutes, then plug back in.

Service: 1-800-332-1110; www.honeywellpluggedin.com