Honeywell Humidifier HWM-270 Series Manual

The Honeywell Humidifier HWM-270 Series is a cool 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 quiet operation mode, an easy-to-clean design, an automatic shut-off when empty, a refill indicator light, and a wicking filter system. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Water Tank, Base with Motor, Control Panel, Wicking Filter, Mist Nozzle, and Power Adapter.

Installation & Setup

Unpack and inspect all contents. Place on a flat, stable, level surface away from direct sunlight and heat sources.

1. Remove all packaging materials from the humidifier and filter.
2. Install the wicking filter: Remove from package, soak in cool water for 15 minutes, then insert into the filter frame in the base.
3. Fill the water tank: Remove tank from base, turn upside down, unscrew cap, fill with cool tap water (do not use hot water), replace cap securely.
4. Place tank on base: Align tank with base and set down firmly. Ensure tank is seated properly to activate the valve.
5. Plug the power cord into a standard 120V AC electrical outlet.

WARNING! Always place humidifier on a water-resistant surface. Do not operate without water. Keep cord away from heated surfaces.

First-Time Use

After installation, follow these steps for initial operation.

1. Power on: Press the Power Button. The unit will beep and the indicator light will illuminate.
2. Set mist output: Turn the Humidity Control Dial to desired setting (Low, Medium, High).
3. Adjust nozzle: Point the 360-degree mist nozzle away from walls, furniture, and electronics.
4. Monitor operation: Allow unit to run for a few minutes; visible mist should emit from the nozzle.
5. Check for leaks: Ensure no water is leaking from tank or base connections.

CAUTION! Use only clean, cool tap water. Do not add essential oils, fragrances, or other chemicals to the water tank, as this can damage the unit and void the warranty.

Specifications

• Model Series: HWM-270.
• Tank Capacity: 1 Gallon (3.8 Liters).
• Room Coverage: Up to 500 sq. ft. (medium to large room).
• Run Time: Up to 24 hours on low setting.
• Mist Output: Adjustable, up to 1.5 gallons per day.
• Noise Level: < 35 dB on quiet setting.
• Power Requirements: 120V AC, 60Hz, 25W.
• Filter Type: Demineralization/Wicking Filter (replace every 1-2 months).
• Dimensions (L x W x H): Approx. 11" x 11" x 15".
• Weight (Empty): 5.5 lbs.

Controls and Settings

Control Panel located on the front of the base unit.

Buttons & Dials: Power Button (On/Off), Humidity Control Dial (continuously variable from Low to High), Indicator Light (Blue for power on, Red for refill needed).

Operation Modes: Standard and Quiet (activated by holding Power Button for 3 seconds). Settings: Mist output level controlled by dial; automatic shut-off activates when tank is empty or removed; refill light illuminates when water level is low.

Operation

For daily use to maintain comfortable humidity levels.

1. Ensure humidifier is on a level surface and plugged in.
2. Press Power Button to turn on. Blue light will illuminate.
3. Adjust Humidity Control Dial to desired mist output.
4. Direct mist nozzle away from walls and electronics.
5. When Red refill light comes on, or mist output decreases, refill the water tank.
6. To turn off, press Power Button. Unit will beep and lights will turn off.

Tip: Ideal indoor humidity is between 40% and 60%. Use a hygrometer to monitor room humidity.

Maintenance & Cleaning

Regular cleaning prevents mold, mineral buildup, and ensures efficient operation.

1. Daily: Refill with fresh, cool water. Wipe exterior with a damp cloth.
2. Weekly: Unplug unit. Empty any remaining water. Clean tank and base with a mixture of 1 cup white vinegar and 1 gallon water. Use a soft brush to clean hard-to-reach areas. Rinse thoroughly with clean water.
3. Monthly: Deep clean the tank cap and valve assembly. Soak filter in vinegar solution for 20 minutes if mineral deposits are visible, then rinse (or replace per schedule).
4. Before Storage: Clean thoroughly, dry all parts completely, and store in original box in a cool, dry place.

WARNING! Always unplug the humidifier before cleaning. Never immerse the base unit in water or let water enter the motor or electrical components.

Filter Replacement

The wicking filter should be replaced every 1-2 months for optimal performance, or more often if you have hard water.

1. Unplug the humidifier and remove the water tank.
2. Lift out the old filter from the base.
3. Soak the new filter in cool water for 15 minutes.
4. Insert the new, soaked filter into the filter frame in the base.
5. Replace the water tank and plug in the unit.

Note: Using the humidifier without a filter or with an old, clogged filter can reduce mist output, increase white dust, and potentially damage the unit.

Regulatory Information

This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Copyright © Honeywell International Inc. Honeywell and the Honeywell logo are registered trademarks of Honeywell International Inc. For customer support, replacement filters, or additional information, visit www.honeywellhumidifiers.com or contact 1-800-332-1110.

Troubleshooting

Reset: Unplug unit for 2 minutes, then plug back in.

Service: For repairs not covered above, contact 1-800-332-1110 or visit www.honeywellhumidifiers.com.