Honeywell DH90A1015 - TrueDRY Dehumidifier Manual

The Honeywell DH90A1015 TrueDRY Dehumidifier is a high-capacity, energy-efficient unit designed to remove up to 90 pints of moisture per day in humid conditions. It features digital humidity control, an auto-defrost function for colder environments, a continuous drain option, a full tank alert with auto-shutoff, a washable air filter, and a 24-hour timer. Ideal for basements, living spaces, and other large areas up to 4500 sq. ft. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

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

Features at a Glance

Key components: Digital control panel with LED display, 1.8-gallon water tank with handle and viewing window, washable pre-filter, continuous drain hose connection, caster wheels for mobility, and auto-restart function.

Feature	Description
Moisture Removal	Up to 90 pints per day (at 80°F, 60% RH)
Digital Humidistat	Precise humidity control from 35% to 85% RH
Auto Defrost	Prevents coil freezing in low temperatures
Continuous Drain	Option for hose connection (hose not included)
Full Tank Alert	LED indicator and auto-shutoff when tank is full
24-Hour Timer	Program on/off cycles
Washable Air Filter	Captures dust and particles; improves air quality
Turbo Mode	Maximum moisture removal speed
Energy Star Certified	Energy efficient operation
Caster Wheels & Handles	Easy mobility between rooms

Installation & Placement

Unpack and inspect contents. Place on a level, stable floor.

Choose Location: Place in the center of the room or area with high humidity, away from walls and furniture for optimal airflow.
Clearance: Ensure at least 12-18 inches of clearance on all sides, especially the air intake and exhaust grilles.
Check Drainage: For continuous drainage, attach a standard garden hose (¾ inch) to the drain port and route to a floor drain or sink.
Power Connection: Plug directly into a grounded 115V AC, 60Hz outlet. Do not use an extension cord.

WARNING! Do not place in temperatures below 41°F (5°C) or above 95°F (35°C). Keep away from heat sources and direct sunlight.

First-Time Setup

Plug in the unit; the control panel will illuminate.

Set Desired Humidity: Press the HUMIDITY button to cycle between 35%, 45%, 55%, 65%, or Continuous mode.
Select Fan Speed: Press FAN button to choose between Low (quiet) and High (Turbo) speed.
Set Timer (Optional): Press TIMER to program automatic start/stop times in 1-hour increments.
Check Filter: Ensure the washable filter is clean and properly installed before first use.

CAUTION! Allow the unit to sit upright for at least 24 hours if it was tilted or laid on its side during transport.

Specifications

Model: DH90A1015 (TrueDRY Series)
Moisture Removal: 90 Pints/Day (at 80°F, 60% RH)
Coverage Area: Up to 4500 sq. ft. (in very damp conditions)
Water Tank Capacity: 1.8 Gallons (6.8 Liters)
Power Supply: 115V AC, 60Hz, 7.5A
Operating Conditions: 41°F to 95°F (5°C to 35°C)
Noise Level: ≤ 51 dB on Low speed
Dimensions (HxWxD): 23.6" x 15.4" x 11.8"
Weight: 41.9 lbs
Refrigerant: R410a (Environmentally Friendly)

Controls and Settings

Access all functions via the digital control panel on top of the unit.

Control Panel: POWER, HUMIDITY, FAN (Low/High), TIMER, FILTER ALERT (reset), TANK FULL (indicator).

Humidity Control: Set target humidity (35%-85%) or select CONTINUOUS mode for maximum drying. Fan Speed: LOW for quiet, energy-saving operation; HIGH (Turbo) for fastest dehumidification. Timer: Program to turn on/off automatically up to 24 hours in advance. Filter Alert: LED illuminates after 250 hours of operation; press and hold FILTER button for 3 seconds to reset after cleaning. Auto Defrost: Activates automatically when coil temperature drops; unit may pause briefly during this cycle.

Operation Modes

Normal Mode: Set desired humidity level; unit cycles on/off to maintain it. Continuous Mode: Runs constantly until tank is full or turned off, for rapid drying. Turbo Mode: High fan speed combined with Continuous mode for maximum performance. Laundry Mode: Use in closed laundry room to speed up clothes drying (run in Continuous mode).

For daily use, set humidity to 45-50% for comfort.
In basements or during rainy seasons, use 35-40%.
Use Timer to run during peak humidity hours (e.g., overnight) to save energy.

Tip: Close windows and doors in the room where the dehumidifier is running for best efficiency.

Maintenance & Cleaning

Unplug the unit before any maintenance.

Empty Water Tank: Regularly check and empty the tank. Lift straight up to remove; pour out water.
Clean Water Tank: Wash with mild soap and water monthly to prevent mold/mildew. Rinse thoroughly.
Clean Air Filter: Remove filter every 2 weeks (or when FILTER light is on). Rinse under lukewarm water, let dry completely before reinstalling.
Clean Exterior: Wipe cabinet with a soft, damp cloth. Do not use abrasive cleaners.
End-of-Season Cleaning: Follow storage instructions below.

WARNING! Never immerse the main unit in water or use harsh chemicals. Do not operate without the filter installed.

Storage & Winterization

If not using for an extended period (e.g., winter):

Unplug the unit.
Empty and thoroughly dry the water tank.
Clean the air filter and let it dry.
Run the unit in FAN ONLY mode for 30 minutes in a warm room to dry internal components.
Coil the power cord neatly.
Store upright in a dry, protected area, covered with a cloth or in its original box.

CAUTION! Do not store in temperatures below freezing. Damage to internal components may occur.

Safety Information

Important safety instructions to prevent fire, electric shock, or injury.

Always plug into a grounded outlet. Do not use an extension cord or power strip.
Do not operate with a damaged cord or plug.
Do not block air intakes or exhausts.
Never insert fingers or objects into the grilles or openings.
Disconnect power before servicing, cleaning, or moving the unit.
This appliance is not intended for use by persons with reduced physical, sensory, or mental capabilities.
Keep children away from the unit and the water collection tank.

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 TrueDRY are trademarks of Honeywell International Inc. For support in the US and Canada, visit www.honeywellpluggedin.com or call 1-800-474-2147.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit does not start	No power, full tank, timer set	Ensure plug is secure; empty water tank; check timer settings.
Little or no water collection	Low humidity, cold room, dirty filter	Room may not need dehumidifying; ensure room temp >41°F; clean filter.
Unit runs but stops frequently	Auto defrost cycle, reached set humidity	This is normal in cold rooms; check if target humidity is met.
Water leaking from unit	Tank not seated, drain hose issue	Ensure tank is pushed in fully; check hose for kinks/leaks.
Loud or unusual noise	Unit not level, loose parts, dirty filter	Place on level floor; check for obstructions; clean filter.
FILTER light is on	Filter needs cleaning	Clean filter as instructed; press & hold FILTER button for 3 sec to reset.

Reset: Unplug for 60 seconds, then plug back in to reset electronic controls.

Service: For repairs, contact authorized service center. Do not attempt to disassemble the unit.