Honeywell Humidifier HEV685 SERIES Manual

The Honeywell Humidifier HEV685 SERIES is a high-efficiency evaporative humidifier designed for medium to large rooms. It features a large-capacity water tank, adjustable humidity control, quiet operation, easy-to-clean design, filter replacement indicator, auto shut-off, and digital display. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting to Power 7. Operation 8. Maintenance & Cleaning 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Digital control panel, large water tank, wick filter, humidistat, air outlet, power cord, and filter indicator light.

Feature	Description
Digital Control Panel	For setting desired humidity level and viewing current humidity
Large Water Tank	High-capacity tank for extended operation
Wick Filter	Evaporative filter that absorbs water for efficient humidification
Adjustable Humidistat	Allows you to set and maintain desired room humidity
Quiet Operation	Designed for low noise during use
Filter Replacement Indicator	Light alerts when filter needs replacing
Auto Shut-Off	Turns off when desired humidity is reached or tank is empty
Easy-to-Clean Design	Removable parts for simple cleaning
Power Cord	Standard AC power connection
Carry Handle	For easy transport of water tank

Installation

Unpack and inspect contents. Place on level, stable surface away from heat sources.

Remove all packaging materials from humidifier and components.
Place humidifier on a flat, level surface at least 12 inches from walls and furniture.
Install wick filter: Remove from packaging and insert into filter slot according to arrows.
Fill water tank: Remove tank, fill with clean, cool water, and replace securely.
Plug into standard 120V AC outlet.

WARNING! Do not place on carpets or uneven surfaces. Ensure unit is upright before filling.

First-Time Setup

Power on humidifier; follow initial setup steps.

Power on: Press POWER button on control panel.
Set desired humidity: Use UP/DOWN buttons to set target humidity (30-60% recommended).
Select fan speed: Choose from LOW, MEDIUM, or HIGH settings.
Monitor operation: Digital display shows current room humidity and settings.
Allow unit to run for initial cycle to properly moisten filter.

CAUTION! Use only clean, cool water. Do not use hot water or additives.

Specifications

Model Series: HEV685
Coverage Area: Up to 1,200 square feet
Water Tank Capacity: 1.5 gallons (5.7 liters)
Output: Up to 2.5 gallons per day
Humidity Control: Adjustable 30-60% RH
Fan Speeds: 3 settings (Low, Medium, High)
Power Source: 120V AC, 60Hz
Power Consumption: 30W maximum
Dimensions: 15.5" H x 13.5" W x 10.5" D
Weight: 10.5 lbs (empty)
Operating Temperature: 41°F to 104°F (5°C to 40°C)

Controls and Settings

Digital Control Panel: POWER, HUMIDITY SET, FAN SPEED, FILTER RESET.

Display Indicators: Current humidity, Set humidity, Fan speed, Filter indicator, Power on.

Humidity Control: Adjust between 30-60% RH using UP/DOWN buttons. Fan Speed: Select LOW for quiet operation, MEDIUM for normal, HIGH for maximum output. Filter Reset: Press and hold for 3 seconds after filter replacement to reset indicator. Auto Mode: Unit automatically adjusts fan speed to maintain set humidity.

Connecting to Power

Use standard 120V AC outlet with proper grounding.

Ensure humidifier is placed on stable, level surface.
Check that water tank is properly seated and filled.
Plug power cord directly into wall outlet (do not use extension cords).
Press POWER button to turn on unit.

Tip: Use a dedicated outlet. Avoid sharing outlet with other high-power appliances.

Operation

Daily operation for optimal humidification.

Fill tank daily: Remove tank, fill with clean cool water, replace securely.
Set desired humidity: 30-50% for comfort, 40-60% for dry conditions.
Select fan speed: Higher speeds increase moisture output.
Monitor filter: Replace when indicator light comes on or every 1-2 months.
Auto shut-off: Unit will turn off when desired humidity is reached.
Night mode: Use LOW fan setting for quiet nighttime operation.
Empty when not in use: Drain tank if unit won't be used for extended periods.

WARNING! Never operate without water or with empty tank. Do not block air inlet or outlet.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

Daily: Check water level, refill as needed.
Weekly: Wipe exterior with damp cloth.
Bi-weekly: Clean water tank with mild detergent, rinse thoroughly.
Monthly: Replace wick filter (sooner if water is hard or unit is used frequently).
Seasonal: Deep clean all components before storage.
Filter replacement: Use only genuine Honeywell replacement filters.

CAUTION! Unplug before cleaning. Never immerse unit in water. Use only mild, non-abrasive cleaners.

Regulatory Information

UL Listed: Certified for safety in the United States and Canada. FCC Compliance: Meets FCC Part 15 Class B digital device requirements. Energy Efficient: Designed for low power consumption. Copyright © Honeywell International Inc. All rights reserved. For support, visit www.honeywellhumidifiers.com or contact 1-800-332-1110.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit not turning on	No power/improper plug	Check outlet; ensure plug is fully inserted; try different outlet.
Low or no mist output	Empty tank/dirty filter	Fill water tank; replace wick filter; clean unit.
Water leakage	Improper tank seating	Ensure tank is properly seated; check for cracks in tank.
Unusual noise	Fan obstruction	Check for obstructions in fan area; ensure unit is level.
Filter indicator on	Filter needs replacement	Replace wick filter; press and hold FILTER RESET for 3 seconds.
Display not working	Power issue	Unplug for 1 minute, then replug; check power source.
Musty odor	Dirty tank/filter	Clean tank and components; replace filter; use fresh water.

Reset: Unplug for 5 minutes to reset electronic controls.

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