Introduction
This manual provides essential instructions for the safe and efficient operation, maintenance, and care of your Excalibur 3548CDB Electric Food Dehydrator. Please read all instructions carefully before initial use and retain this manual for future reference.

Image: The Excalibur 3548CDB Electric Food Dehydrator, showcasing its five trays filled with various dehydrated foods, alongside fresh fruits and a jar of preserved items.
Safety Information
Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, and injury. This appliance is for household use only.
- Do not immerse the appliance, cord, or plug in water or other liquids.
- Supervise children closely when the appliance is in use.
- Unplug from outlet when not in use and before cleaning.
- Do not operate any appliance with a damaged cord or plug, or after the appliance malfunctions or has been damaged in any manner.
- Use only manufacturer-recommended attachments.
- Do not use outdoors.
- Do not let the cord hang over the edge of a table or counter, or touch hot surfaces.
Product Components
The Excalibur 3548CDB Dehydrator includes the following main components:
- Dehydrator Base Unit with Fan and Heating Element
- Digital Control Panel (Timer and Temperature Settings)
- 5 Drying Trays
- Clear Polycarbonate Front Door

Image: A front view of the Excalibur 3548CDB Dehydrator, highlighting the clear door and the digital control panel on top.
Setup
- Unpacking: Carefully remove all packaging materials from the dehydrator and its components. Inspect the unit for any damage.
- Initial Cleaning: Before first use, wipe the exterior of the dehydrator with a damp cloth. Wash the drying trays and the clear door with warm, soapy water. Rinse thoroughly and dry completely.
- Placement: Place the dehydrator on a stable, level, and heat-resistant surface. Ensure there is adequate air circulation around the unit, keeping it away from walls or other appliances. Do not block the air intake or exhaust vents.
- Tray Installation: Slide the clean drying trays into the designated slots within the dehydrator.
- Power Connection: Plug the power cord into a grounded 110/120 Volt AC electrical outlet.

Image: The Excalibur 3548CDB Dehydrator with its clear door detached and drying trays partially extended, illustrating the setup process.
Operating Instructions
Preparing Food for Dehydration
- Wash and prepare food items (e.g., peel, core, slice).
- Slice food into uniform thickness for even drying.
- Arrange food in a single layer on the drying trays, ensuring air can circulate around each piece. Do not overlap items.
Using the Digital Control Panel
The 3548CDB model features a digital control panel for precise temperature and time management.

Image: A detailed view of the digital control panel on the Excalibur 3548CDB, showing the buttons for Start, Stop, Temperature adjustment, and Time adjustment.
- Power On: Press the START button to turn on the dehydrator.
- Set Temperature: Use the TEMP + or TEMP - buttons to adjust the drying temperature. The adjustable thermostat ranges from 95°F to 165°F (35°C to 74°C). Refer to a dehydration guide for recommended temperatures for different foods.
- Set Timer: Use the TIME + or TIME - buttons to set the desired drying time, up to 48 hours. This model allows for two time and two temperature settings, enabling a faster initial drying phase followed by a lower temperature finish.
- Start Dehydration: Once temperature and time are set, the unit will begin operation.
- Monitoring: The clear polycarbonate door allows you to monitor the drying progress without opening the unit, thus maintaining consistent internal temperature.
- Power Off: To stop the dehydration process, press the STOP button. The unit will automatically shut off when the timer expires.
Hyperwave Technology and Horizontal Parallex Drying
Your Excalibur dehydrator utilizes patented Hyperwave technology and Horizontal Parallex drying. This system removes water from food with a continuous circulation of thermostatically controlled warm air. The horizontal airflow ensures even drying across all trays, eliminating the need to rotate trays during the process.

Image: The Excalibur 3548CDB Dehydrator with trays extended, showing sliced strawberries and oranges, illustrating the horizontal airflow design for even drying.
Maintenance and Cleaning
Regular cleaning ensures optimal performance and extends the lifespan of your dehydrator.
- Disconnect Power: Always unplug the dehydrator from the electrical outlet before cleaning.
- Clean Trays and Door: Remove the drying trays and the clear door. Wash them in warm, soapy water. Rinse thoroughly and dry completely. Note: The trays and door are NOT dishwasher safe.
- Clean Interior/Exterior: Wipe the interior and exterior surfaces of the dehydrator with a damp cloth. For stubborn food residue, use a mild detergent. Avoid abrasive cleaners or scouring pads.
- Fan Area: Ensure the fan area at the back of the unit is free from food particles or debris. Use a soft brush or vacuum cleaner attachment if necessary.
- Storage: Once clean and dry, reassemble the dehydrator or store components separately in a dry, dust-free environment.
Troubleshooting
If you encounter issues with your Excalibur dehydrator, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Dehydrator does not turn on. | Not plugged in; power outlet malfunction; unit malfunction. | Check power cord connection. Test outlet with another appliance. If still not working, contact customer support. |
| Uneven drying of food. | Food sliced unevenly; trays overloaded; blocked airflow. | Ensure food is sliced uniformly. Do not overload trays; arrange food in a single layer. Check for any obstructions to airflow. |
| Timer not functioning correctly. | Digital timer malfunction. | Ensure timer settings are correctly entered. If the issue persists, contact customer support. (Note: Some users have reported mechanical timer issues in older models, but this is a digital model). |
| Unit is excessively noisy. | Fan obstruction; loose components. | Check the fan area for any obstructions. Ensure the unit is on a stable, level surface. If noise persists, contact customer support. |
Specifications
- Model: Excalibur 3548CDB
- Brand: Excalibur
- Drying Space: 8 square feet
- Number of Trays: 5
- Temperature Range: 95°F - 165°F (35°C - 74°C)
- Timer: Digital, up to 48 hours with two time/temperature settings
- Voltage: 110/120 Volts
- Wattage: 440 Watts
- Dimensions (L x W x H): 20 x 22 x 12 inches
- Item Weight: 17 pounds
- Material: Plastic (Food Safe)
- Door: Clear Polycarbonate
- Dishwasher Safe: No (for trays and door)
Warranty and Support
For specific warranty details, please refer to the warranty documentation included with your product or visit the official Excalibur website. For customer support, product registration, or to purchase replacement parts, please visit the Excalibur Store on Amazon or the manufacturer's official website.





