Honeywell Humidifier HWM-4040 Series Manual

The Honeywell HWM-4040 Series is a high-performance cool mist humidifier designed for medium to large rooms. It features a 1-gallon tank capacity, adjustable humidity control, a wicking filter system, a quiet operation mode, an automatic shut-off when empty, a refill indicator light, and a sleek, easy-to-clean design. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Water Tank, Base Unit with Motor, Wick Filter, Control Panel, Humidity Dial, Mist Nozzle, Refill Indicator Light.

Installation & Setup

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

1. Remove all packaging materials from the tank and base.
2. Install the wick filter: Remove from packaging, soak in cool water for 15 minutes, then insert into the filter frame in the base.
3. Fill the tank: Remove tank from base, turn upside down, unscrew cap, fill with cool tap water to the MAX line, replace cap securely.
4. Place tank back on base, ensuring it is seated properly and aligned.
5. Plug the power cord into a standard 120V AC outlet.

WARNING! Use only cool, tap water. Do not use hot water, distilled water, or additives. Ensure unit is on a waterproof surface.

First-Time Use

Power on the humidifier; set your desired humidity level.

1. Turn the Humidity Control Dial to the desired setting (Low, Medium, High).
2. Adjust the 360° Mist Nozzle to direct mist away from walls and furniture.
3. The unit will begin producing a cool mist. The Refill Indicator Light will be off when tank is full.
4. For quiet operation at night, set the dial to the Low setting.

CAUTION! Do not block the mist outlet or air intakes. Keep out of reach of children.

Specifications

• Model Series: HWM-4040.
• Tank Capacity: 1 Gallon (3.8 Liters).
• Room Coverage: Up to 400 sq. ft.
• Run Time: Up to 24 hours (Low setting).
• Humidity Output: Up to 1.2 gallons per day.
• Controls: Manual Dial Control (Low/Med/High).
• Filter Type: Replaceable Wick Filter (Model HWF-4040).
• Power Source: 120V AC, 60Hz.
• Power Consumption: 30W Max.
• Unit Dimensions: 12.5" H x 10.5" W x 10.5" D.
• Weight (Empty): 5.5 lbs.

Controls and Operation

Control Panel located on the front of the base unit.

Main Controls: Humidity Control Dial (turns unit On/Off and adjusts mist output), Refill Indicator Light (red), Filter Change Indicator Light (amber).

Operation: Turn dial clockwise from "OFF" to "LOW", "MEDIUM", or "HIGH". The further the dial is turned, the higher the mist output and humidity level. Adjust the Mist Nozzle as needed. The Refill Indicator Light will illuminate red when the water tank is nearly empty, signaling it is time to refill.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral buildup. Clean every 1-2 weeks during use.

1. Unplug the unit from the electrical outlet.
2. Remove the water tank and empty any remaining water.
3. Separate the tank from the base.
4. Clean the tank: Fill with a mixture of 1 teaspoon of white vinegar and 1 gallon of water. Swirl and scrub interior with a soft brush. Rinse thoroughly with clean water.
5. Clean the base: Wipe the exterior with a soft, damp cloth. Do not submerge the base in water.
6. Clean the mist nozzle with a cotton swab if clogged.
7. Allow all parts to air dry completely before reassembling.

Tip: Use only vinegar or manufacturer-recommended cleaning solutions. Do not use abrasive cleaners or chemicals.

Filter Replacement

The Wick Filter should be replaced every 1-2 months, or when visibly discolored or mineralized, or when the Filter Change Indicator Light illuminates.

1. Unplug the unit and remove the water tank.
2. Remove the old wick filter from the filter frame in the base.
3. Soak the new HWF-4040 filter in cool water for 15 minutes.
4. Insert the new, soaked filter into the frame, ensuring it is seated flat.
5. Press the "Filter Reset" button (if present) next to the indicator light to turn off the reminder.
6. Reassemble the tank and base.

WARNING! Never operate the humidifier without a filter installed. This can cause over-humidification and damage the unit.

Safety Features

Automatic Shut-Off: Turns the unit off when the water tank is empty, preventing damage to the motor. Tip-Over Protection: Internal switch stops operation if unit is knocked over. Over-Humidification Prevention: Wick filter system helps regulate output.

Care & Storage

When not in use for an extended period (e.g., summer months), prepare the unit for storage.

1. Unplug the unit.
2. Empty and thoroughly clean the tank and base as described in Section 7.
3. Remove and discard the used wick filter.
4. Allow all parts to dry completely for at least 24 hours.
5. Reassemble the unit without a filter and store in the original box in a cool, dry place.

CAUTION! Do not store with water in the tank or with a wet filter, as this can promote mold growth.

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 support, visit www.honeywellhumidifiers.com or contact customer service at 1-800-332-1110.

Troubleshooting

Reset: Unplug unit for 5 minutes, then restart. For persistent Filter Light, replace filter and press reset button if available.

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