Honeywell Humidifier HM750A1000 Manual

The Honeywell HM750A1000 is a large-capacity evaporative humidifier designed for whole-room moisture control. It features a 2.5-gallon tank, adjustable humidity control, three fan speeds, a refill indicator, an easy-to-clean design, and antimicrobial-treated wicking filters. Ideal for medium to large rooms up to 750 sq ft. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 2.5-gallon water tank, adjustable humidistat, three-speed fan control, refill indicator light, antimicrobial wicking filter, easy-carry handle, and easy-to-clean design.

Installation & Setup

Unpack and inspect all components. Place on a level, stable surface away from walls and furniture.

1. Remove all packaging materials from the humidifier and tank.
2. Install the wicking filter: Remove filter from packaging and insert into the base unit, ensuring it is seated properly.
3. Fill the water tank: Carry tank to water source, remove cap, fill with clean, cool tap water. Replace cap securely.
4. Place tank on base: Align tank with base and set down gently. Ensure tank is seated correctly to activate water flow.
5. Plug into a grounded 120V AC outlet.

WARNING! Use only clean, cool tap water. Do not use hot water or add any chemicals, oils, or fragrances to the water tank. Ensure unit is on a level, waterproof surface.

First-Time Use

Power on the humidifier and configure initial settings.

1. Set desired humidity level: Turn the humidistat knob to your preferred setting (typically between 40-50% for comfort).
2. Select fan speed: Turn the fan control dial to Low, Medium, or High based on room size and desired moisture output.
3. Monitor operation: The unit will begin humidifying. The refill indicator will light when the tank is empty.
4. Adjust as needed: Fine-tune humidity and fan speed for optimal comfort.

CAUTION! Do not operate without the filter installed. Never tilt or move the unit while it is operating or filled with water.

Specifications

• Model: Honeywell HM750A1000
• Tank Capacity: 2.5 gallons (9.5 liters)
• Room Coverage: Up to 750 sq ft
• Output: Up to 2.5 gallons per day (depending on settings)
• Humidistat: Adjustable, with auto shut-off
• Fan Speeds: 3 (Low, Medium, High)
• Filter: Antimicrobial wicking filter (replacement part #HWF750)
• Power: 120V AC, 60Hz, 40W
• Dimensions (approx.): 16.5" H x 13.5" W x 10.5" D
• Weight (empty): 8.5 lbs

Controls and Settings

All controls are located on the front panel of the humidifier.

Fan Speed Control Dial: Rotate to select Low, Medium, or High fan speed. Higher speeds produce more moisture output and airflow noise.

Humidistat Knob: Adjust to set desired room humidity level. The humidifier will run until the set humidity is reached, then cycle off automatically. Turn knob clockwise to increase humidity setting.

Refill Indicator Light: Illuminates when the water tank is empty, signaling that the tank needs to be refilled.

Power Indicator: A small light confirms the unit is receiving power when plugged in and turned on.

Operation Guide

For daily use and optimal performance.

1. Ensure the unit is on a level, stable surface.
2. Fill the tank with clean, cool tap water and place it securely on the base.
3. Plug the power cord into an outlet.
4. Set the desired humidity level using the humidistat knob.
5. Select the appropriate fan speed for your needs.
6. The unit will begin operation. Mist output will be visible from the top grille.
7. When the refill indicator lights, unplug the unit, remove the tank, refill, and replace.
8. To turn off, unplug from the electrical outlet.

Tip: For best results, place the humidifier at least 12 inches away from walls and furniture. Use in a room with the door closed for faster humidity increase.

Maintenance & Cleaning

Regular cleaning prevents mineral buildup and ensures efficient operation.

1. Daily: Refill tank with fresh water. Do not let water sit in tank for extended periods.
2. Weekly: Clean the water tank and base. Unplug unit. Remove tank. Wipe interior of tank and base with a soft, damp cloth. Do not immerse base in water.
3. Monthly/As Needed: Deep clean to remove scale. Use a solution of white vinegar and water (1:1 ratio) to soak and wipe mineral deposits from tank and base. Rinse thoroughly with clean water.
4. Allow all parts to air dry completely before reassembling and using.

WARNING! Always unplug the unit before cleaning. Never use abrasive cleaners, brushes, or chemicals. Do not allow water to enter the motor or electrical components in the base.

Filter Replacement

The antimicrobial wicking filter should be replaced at least once per season, or more often if used frequently or with hard water.

1. Unplug the humidifier and remove the water tank.
2. Lift out the old filter from the base.
3. Insert the new filter (Honeywell replacement part #HWF750). Ensure it is fully seated and the edges are aligned with the base.
4. Replace the water tank and plug in the unit.
5. Run the humidifier on High for 10-15 minutes to prime the new filter.

Note: A dirty or clogged filter will reduce moisture output and efficiency. Never operate the humidifier without a filter installed.

Regulatory Information

This humidifier complies with FCC Part 15 standards for Class B digital devices. It is intended for household use in the United States and Canada. Copyright © Honeywell International Inc. Honeywell and the Honeywell logo are registered trademarks. For customer support, replacement parts, or to locate a service center, visit www.honeywellhumidifiers.com or call 1-800-332-1110.

Troubleshooting

Reset: Unplug the unit for 2 minutes, then plug back in to reset the electronics.

Service: For issues not resolved above, contact Honeywell Customer Service at 1-800-332-1110 or visit www.honeywellhumidifiers.com. Do not attempt to repair the unit yourself.