Frigidaire LAD504DUL12 Dehumidifier Manual

The Frigidaire LAD504DUL12 is a 50-pint dehumidifier designed for medium to large rooms, featuring automatic humidity control, continuous drain option, washable air filter, 24-hour timer, electronic controls with digital display, auto-restart after power interruption, and low-temperature operation capability. 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 & Off-Season Care 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Electronic control panel, Digital humidity display, Water tank with full indicator, Continuous drain hose connection, Washable air filter, Carrying handles, Casters for mobility.

Feature	Description
Humidity Control	Automatic humidity sensing with adjustable set point (35%-85%)
Water Tank	Removable 50-pint capacity with full indicator and auto shut-off
Continuous Drain	Garden hose connection for unattended operation
Air Filter	Washable mesh filter for improved air quality
Timer Function	24-hour programmable on/off timer
Low Temp Operation	Operates down to 41°F (5°C)
Auto Restart	Resumes previous settings after power outage
Digital Display	Shows current humidity, set point, and timer status
Control Lock	Prevents accidental setting changes
Portability	Built-in handles and casters for easy movement

Installation & Placement

Unpack and inspect contents. Place on level, stable surface.

Choose location: Place in center of room away from walls/furniture for optimal airflow.
Clearance: Maintain at least 12 inches clearance on all sides.
Level surface: Ensure unit is level to prevent water leakage.
Drain options: Position near floor drain or prepare water tank access.
Power connection: Plug into dedicated 115V AC outlet (do not use extension cord).

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

First-Time Setup

Power on dehumidifier; follow initial setup procedure.

Install filter: Ensure washable air filter is properly seated.
Set humidity: Press HUMIDITY button to set desired level (recommended 45-50%).
Select mode: Choose between CONTINUOUS or AUTO mode.
Set timer: Program 24-hour timer if needed.
Check drain: Ensure water tank is empty or connect continuous drain hose.

CAUTION! Allow unit to stand upright for 24 hours if transported on its side before operation.

Specifications

Model: Frigidaire LAD504DUL12
Capacity: 50 pints per day (at 60°F, 60% RH)
Coverage: Up to 1500 sq. ft. in moderate conditions
Water Tank: 50-pint removable bucket
Power: 115V, 60Hz, 6.5A
Operating Temperature: 41°F to 95°F (5°C to 35°C)
Noise Level: ≤ 55 dB
Dimensions: 15.4" W × 11.4" D × 24.3" H
Weight: 41 lbs
Refrigerant: R-410A

Controls and Settings

Access controls via electronic panel. Front Panel: POWER, MODE, HUMIDITY, TIMER, FILTER RESET, CONTROL LOCK.

Display Indicators: Current humidity, Set humidity, Timer, Filter alert, Full tank, Defrost.

Humidity Control: Adjust between 35%-85% in 5% increments. Modes: CONTINUOUS (runs constantly), AUTO (cycles based on set point). Timer: Program on/off times in 1-hour increments. Filter Reset: Press after cleaning filter. Control Lock: Press and hold for 3 seconds to lock/unlock controls.

Operation Modes

Auto Mode: Unit cycles on/off to maintain set humidity level. Continuous Mode: Runs continuously regardless of humidity level.

Select mode: Press MODE button to choose AUTO or CONTINUOUS.
Set humidity: In AUTO mode, set desired humidity level.
Monitor: Display shows current room humidity.
Timer operation: Set timer for automatic start/stop.
Drain management: Empty tank when FULL light illuminates or use continuous drain.

Tip: For maximum efficiency, keep doors and windows closed during operation.

Maintenance & Cleaning

Unplug before maintenance. Clean every 2 weeks during heavy use.

Air filter: Remove and wash with warm, soapy water every 2 weeks. Dry completely before reinstalling.
Water tank: Empty and clean with mild detergent monthly.
Exterior: Wipe with damp cloth. Do not use abrasive cleaners.
Coils: Vacuum condenser coils every 3 months.
Drain hose: Check for clogs if using continuous drain.

WARNING! Never operate without filter. Do not immerse unit in water.

Storage & Off-Season Care

Prepare unit for storage when not in use for extended periods.

Clean thoroughly: Follow maintenance steps above.
Empty tank: Ensure no water remains in tank or internal components.
Dry completely: Run in fan-only mode for 24 hours to dry internal components.
Coil protection: Cover coils with plastic to prevent dust accumulation.
Store properly: Keep in dry, protected area. Cover with breathable cloth.

CAUTION! Store in upright position. Do not place heavy objects on top.

Regulatory Information

UL Listed: Meets UL 474 safety standards. Energy Star: Certified for energy efficiency. EPA: Compliant with refrigerant regulations. Copyright © Frigidaire; trademarks of Electrolux Home Products, Inc. For support, visit www.frigidaire.com or contact 1-800-374-4432.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit not starting	Power/controls	Check power connection; ensure control lock is off; wait 3 minutes after unplugging.
Low dehumidification	Temperature/filter	Room temperature may be too low; clean filter; check for air blockage.
Water leakage	Tank/drain	Ensure tank properly seated; check drain hose connection; level unit.
Loud noise	Vibration/obstruction	Check for level surface; remove foreign objects from fan area.
Frost on coils	Low temperature	Normal in low temps; unit will auto-defrost. Move to warmer area.
Display not working	Power/reset	Unplug for 5 minutes then reconnect. Check outlet with another device.

Reset: Unplug for 5 minutes to reset electronic controls.

Service: 1-800-374-4432; www.frigidaire.com