Honeywell Humidifier HM700ATX Manual

The Honeywell HM700ATX is a 2-gallon cool mist humidifier designed for medium to large rooms up to 700 sq. ft. It features a wicking filter system, adjustable humidity control, a refill indicator light, a 24-hour programmable timer, an auto-shutoff function when empty, a quiet operation mode, and an essential oil tray. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation & Setup 3. First-Time Use 4. Specifications 5. Controls and Settings 6. Operation Modes 7. Maintenance & Cleaning 8. Filter Replacement 9. Safety Information 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Water tank, base with motor and wicking filter, control panel, refill indicator, timer, humidity dial, and essential oil tray.

Feature	Description
Water Tank Capacity	2 gallons (7.6 liters)
Room Coverage	Up to 700 square feet
Humidity Control	Adjustable dial for desired humidity level
Refill Indicator Light	LED lights up when tank is empty
24-Hour Programmable Timer	Set automatic on/off cycles
Auto Shut-Off	Turns off when tank is empty
Quiet Operation Mode	Reduced fan speed for nighttime use
Essential Oil Tray	Add drops for aromatherapy (optional)
Wicking Filter System	Removes impurities from water
Power Cord	6-foot cord with storage wrap

Installation & Setup

Unpack and inspect all parts. Place on a level, stable surface away from walls and electronics.

Remove tank: Lift water tank from base.
Install filter: Remove filter from packaging and insert into filter slot in base.
Fill tank: Turn tank upside down, remove cap, fill with cool tap water up to fill line.
Reassemble: Place tank back onto base, ensuring it seats firmly.
Plug in: Connect power cord to outlet.

WARNING! Do not use with damaged cord or plug. Keep away from children. Use only cool tap water.

First-Time Use

Power on humidifier; set desired humidity level.

Initial soak: Allow filter to soak for 15-20 minutes before first use.
Power: Press POWER button; unit will beep and indicator light will illuminate.
Set humidity: Turn HUMIDITY CONTROL dial to desired level (Low to High).
Set timer: Press TIMER button to program automatic shut-off (1-24 hours).
Select mode: Press QUIET MODE button for reduced noise.
Add oils: Place 2-3 drops in essential oil tray (optional).

CAUTION! Place on a waterproof surface. Do not block mist outlet.

Specifications

Model: HM700ATX
Tank Capacity: 2 gallons (7.6 L)
Coverage Area: Up to 700 sq. ft.
Run Time: Up to 24 hours on low setting
Output: Up to 1.5 gallons per day
Noise Level: ≤ 35 dB in quiet mode
Power Consumption: 30W
Power Source: 120V AC, 60Hz
Dimensions (HxWxD): 18.5" x 13.2" x 10.6"
Weight (empty): 7.5 lbs

Controls and Settings

Control Panel: POWER button, HUMIDITY CONTROL dial, TIMER button, QUIET MODE button, REFILL indicator light.

Humidity Control: Adjust dial from LOW (1) to HIGH (5). Timer: Press to cycle through 1-24 hours; display shows set time. Quiet Mode: Reduces fan speed and noise. Refill Light: Illuminates red when water level is low. Auto Shut-Off: Activates when tank is empty or removed.

Operation Modes

Normal Mode: Default operation with adjustable humidity. Quiet Mode: Reduced fan speed for nighttime. Timer Mode: Programmed operation for energy savings.

Select mode via control panel buttons.
Monitor humidity with built-in hygrometer (if equipped).
Refill when indicator light turns red.

Tip: Ideal humidity level is between 40-60%. Use a separate hygrometer for accuracy.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral buildup.

Unplug unit before cleaning.
Empty and rinse tank daily.
Clean base weekly: Use soft brush and vinegar solution (1 part white vinegar to 3 parts water).
Rinse all parts thoroughly with clean water.
Dry completely before reassembly.
Replace filter every 1-2 months or as needed.

WARNING! Do not use harsh chemicals, detergents, or abrasives. Never immerse motor base in water.

Filter Replacement

Replace wicking filter every 1-2 months for optimal performance.

Turn off and unplug humidifier.
Remove water tank.
Remove old filter from base slot.
Insert new filter (Model HF-100).
Reassemble and run for 15 minutes to soak filter.

Note: Using tap water may require more frequent filter changes. Consider using demineralization cartridge if available.

Safety Information

Read all instructions before use. Keep out of reach of children. Do not operate with damaged cord. Use only cool tap water. Place on level, waterproof surface. Do not block mist outlet. Unplug when not in use for extended periods.

CAUTION! Risk of electric shock. Do not disassemble or attempt repairs. Contact authorized service center.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. UL Listed. Copyright © Honeywell International Inc. For support, visit www.honeywellhumidifiers.com or contact 1-800-332-1110.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No mist output	Empty tank/Clogged filter	Refill water tank; replace or clean filter.
Unit not powering on	Power source/Connection	Check outlet; ensure plug is fully inserted; check circuit breaker.
Red indicator light on	Low water level	Refill water tank immediately.
White dust output	Mineral buildup	Use demineralization cartridge or distilled water; clean unit.
Unusual noise	Loose parts/Mineral deposits	Ensure tank is seated properly; clean base and fan.
Water leakage	Improper assembly/Cracked tank	Check tank seal and cap; ensure all parts are tight; inspect for damage.
Poor humidity	Dirty filter/Room size	Replace filter; ensure room size is within 700 sq. ft.

Reset: Unplug for 2 minutes, then restart.

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