The Honeywell Humidifier ULTRA PLUS HUL565 Series is a high-performance humidifier designed for medium to large rooms, featuring ultrasonic cool mist technology, adjustable humidity control, a large water tank capacity, quiet operation, essential oil tray, filter-free design, auto shut-off, and easy-to-clean components. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.
Key components: Ultrasonic mist generator, Water Tank, Control Panel, Humidistat, Essential Oil Tray, Mist Nozzle, Power Adapter.
| Feature | Description |
|---|---|
| Ultrasonic Technology | Produces a fine, cool mist without heating water |
| Adjustable Mist Output | Variable speed control for desired humidity level |
| Large Water Tank | High capacity for extended operation |
| Essential Oil Tray | Add drops for aromatherapy diffusion |
| Filter-Free Design | No replacement filters required |
| Quiet Operation | Ultra-quiet for bedroom or office use |
| Auto Shut-Off | Turns off when tank is empty or removed |
| Humidistat | Monitors room humidity; adjustable set point |
| 360° Mist Nozzle | Directs mist in any direction |
| Easy-Fill Tank | Wide opening for convenient refilling |
Unpack and inspect all components. Place on a flat, stable, and level surface away from direct sunlight and electronics.
WARNING! Do not operate without water. Use only clean, cool tap water. Do not add water directly to base.
Power on the humidifier; set desired humidity level.
CAUTION! Place on a water-resistant surface. Keep out of reach of children and pets.
Control Panel: POWER Button, MIST LEVEL (Low/Med/High), HUMIDISTAT Knob, INDICATOR LIGHTS (Power, Low Water).
Operation: POWER turns unit on/off. MIST LEVEL cycles through output settings. HUMIDISTAT adjusts target humidity (40-60% recommended for comfort).
Indicator Lights: Solid green = power on; Flashing red = low water or tank not seated.
Essential Oil Tray: Slide out tray, add 3-5 drops of oil, slide back in. Do not pour oils directly into water tank.
For optimal performance and humidity control.
Tip: Use distilled or demineralized water to minimize white dust if water is very hard.
Regular cleaning prevents mold, bacteria, and mineral buildup.
CAUTION! Unplug before cleaning. Never immerse base in water. Do not use abrasive cleaners or brushes.
Auto Shut-Off: Activates when water tank is empty or improperly seated. Low Water Indicator: Red flashing light alerts to refill. Tip-Over Protection: Unit shuts off if knocked over.
FCC Part 15: Class B digital device; complies with interference limits for residential use. ETL Listed for US and Canada. Copyright © Honeywell International Inc. For support, visit www.honeywellhumidifiers.com or contact 1-800-332-1110.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No mist / No power | Not plugged in / No water | Ensure unit is plugged in; fill tank with water; ensure tank is seated properly. |
| Low mist output | Mineral buildup / Low setting | Clean ultrasonic disc with vinegar; increase mist level setting. |
| White dust around unit | Hard water minerals | Use distilled or demineralized water; clean unit more frequently. |
| Water leaking | Tank cap not tight / Crack | Ensure tank cap is securely tightened; inspect tank and base for cracks. |
| Unusual noise | Vibration / Debris | Place on level surface; check for foreign objects in water or on disc. |
| Indicator light flashing | Low water / Fault | Refill water tank; unplug for 1 minute, then restart. If persists, contact support. |
Reset: Unplug for 60 seconds, then restart.
Service: 1-800-332-1110; www.honeywellhumidifiers.com