1. Introduction
The Electrolux UltimateHome 500 is a versatile appliance designed to improve your indoor air quality by combining powerful dehumidification with advanced air purification. It features a multi-stage filtration system to capture bacteria and viruses, ensuring a cleaner and more comfortable living space. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new dehumidifier.

Figure 1: Electrolux UltimateHome 500 Dehumidifier (Dark Gray model)
2. Safety Information
Your safety is paramount. The UltimateHome 500 is equipped with 35 safety features to ensure reliable operation. Please read and adhere to all safety warnings and instructions before using the appliance.
- Child Lock: This feature prevents unintended operation of the control panel, ideal for households with children.
- Drainage Tank Full Prevention: The unit automatically stops operation when the water tank is full to prevent overflow.
- Compressor Protector: Protects the compressor from damage due to power fluctuations or rapid restarts.
- Frost Sensor: Prevents ice buildup on the evaporator coils, ensuring efficient operation.
- Placement: Ensure at least 20 cm (approximately 8 inches) of clearance around the unit for proper airflow and optimal performance. Avoid placing it directly against walls or furniture.

Figure 2: Unit placement in a room, emphasizing safety and optimal operation.
3. Product Overview
The UltimateHome 500 is designed for intuitive use and effective performance. Key components include:
- Control Panel: Located on the top, with touch controls and a digital display.
- Air Quality Light: An indicator light that changes color (blue, green, orange, red) to show current air quality.
- Water Tank: Removable tank at the bottom for collecting condensed water.
- Air Inlet/Outlet: Grilles for air intake and expulsion.
- Casters: Wheels at the base for easy movement (note: casters do not have locks).
- Filter System: A multi-layer filtration system for comprehensive air purification.
Filter System Details
The unit incorporates a 3-step filtration system to ensure clean air:
- Pre-filter: Captures larger particles like dust and pet hair.
- Antibacterial Layer (Antibacterial Coating): Inhibits the growth of bacteria.
- Care Ultimate Protect Filter: Designed to suppress 99% of captured bacteria and reduce 99% of viruses.

Figure 3: The 3-step air filtration system.
4. Setup
Follow these steps for initial setup:
- Unpacking: Carefully remove the unit from its packaging. Retain packaging for future transport or storage.
- Placement: Place the dehumidifier on a flat, stable surface. Ensure there is at least 20 cm (approximately 8 inches) of clear space around all sides of the unit to allow for proper air circulation. Avoid placing it in direct sunlight or near heat sources.
- Power Connection: Plug the power cord into a grounded electrical outlet.
- Water Tank: Ensure the water tank is correctly inserted into the unit.
5. Operation
The UltimateHome 500 offers various modes and settings for optimal performance.
Control Panel Functions
- Power Button: Turns the unit on/off.
- Mode Selection: Cycles through available operating modes.
- Fan Speed Button: Adjusts fan speed in Manual mode (MAX, MID, MIN).
- Timer Button: Sets desired operating duration.
- Child Lock Button: Activates/deactivates the child lock.
Operating Modes
- Smart Mode: The unit automatically measures air quality and humidity, adjusting operation to maintain a comfortable environment. The Air Quality Light indicates current air status (Blue: Good, Green: Moderate, Orange: Poor, Red: Very Poor).
- Sleep Mode: Operates at a low noise level, dims the display, and turns off the Air Quality Light for undisturbed rest.
- DRYER Function: Activates dehumidification with maximum fan speed to rapidly reduce indoor humidity, ideal for drying clothes.
- Continuous Operation (COMPLETE function): Allows the unit to operate continuously without stopping due to a full water tank. This requires connecting a drainage hose (commercially available) to the unit and directing it to a suitable drainage location.

Figure 4: The unit automatically adjusts to maintain optimal humidity and air quality in Smart Mode.

Figure 5: Enjoy a comfortable and quiet environment, even during sleep, with Sleep Mode.
6. Maintenance
Regular maintenance ensures the longevity and efficiency of your dehumidifier.
Filter Replacement
The unit will notify you when the Care Ultimate Protect filter needs to be replaced. Filter lifespan can vary based on usage and air quality. Refer to the filter replacement indicator on the control panel. Replacement filters are sold separately.
Water Tank Drainage
When the water tank is full, the unit will stop operating and an indicator will light up. Carefully remove the water tank and empty the collected water. Reinsert the tank firmly until it clicks into place.
General Cleaning
- Exterior: Wipe the exterior with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Air Inlet/Outlet: Periodically clean the air grilles with a soft brush or vacuum cleaner attachment to remove dust buildup.
- Pre-filter: The pre-filter can be gently cleaned with a soft brush or vacuumed.
7. Troubleshooting
If you encounter issues with your dehumidifier, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on | No power, power cord loose, water tank full or incorrectly inserted. | Check power connection, empty and reinsert water tank correctly. |
| Dehumidification is weak | Room size too large, filters clogged, ambient temperature too low, doors/windows open. | Ensure room is sealed, clean/replace filters, operate within recommended temperature range. |
| Unusual noise during operation | Unit not on a level surface, fan obstruction, normal compressor sound. | Place on a level surface, check for obstructions. A low hum from the compressor is normal. Consider an anti-vibration mat if noise is bothersome. |
| Water leakage | Water tank not properly seated, drainage hose (if used) is loose or clogged. | Ensure water tank is fully inserted. Check drainage hose connection and ensure it's not kinked or blocked. |
| Air Quality Light always red/orange | High levels of airborne particles, sensor needs cleaning. | Allow unit to operate to clean air. Gently clean the air quality sensor if accessible (refer to full manual for location). |
If the problem persists after trying these solutions, please contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Electrolux |
| Model Number | EDH12 |
| Product Dimensions | 68 x 43.2 x 35.6 cm (26.8 x 17 x 14 inches) |
| Color | Dark Gray |
| Special Features | Antibacterial |
| Item Weight | 19.8 kg (43.65 lbs) |
| Water Tank Capacity | 4.8 Liters |
| Dehumidification Capacity | 12L/Day (at 27°C, 60% RH) |
| Applicable Floor Area (Dehumidification) | Approx. 30 tatami mats (concrete housing 60Hz) |
| Applicable Floor Area (Air Purification) | Approx. 24 tatami mats |
9. Warranty and Support
Electrolux provides the following warranty for your UltimateHome 500 Dehumidifier:
- Main Unit: 1 Year
- Compressor: 3 Years
For technical support, warranty claims, or to purchase replacement parts (such as filters), please contact Electrolux customer service. Contact details can typically be found on the official Electrolux website or on your product packaging.