1. Introduction
The Chattanooga Theratherm Digital Moist Heat Pack is designed to provide deep, penetrating moist heat for temporary relief of minor muscle and joint pain. This includes pain associated with arthritis, back pain caused by muscle spasm, and inflammation resulting from strain and tension. The device features a digital hand control for precise temperature and treatment time settings, and a flannel cover that naturally draws moisture from the air to deliver effective moist heat therapy.
2. Safety Information
Please read all instructions and safety warnings before using this product. Failure to do so may result in injury or damage to the device.
- Do not use this device on infants, incapacitated individuals, or persons insensitive to heat.
- Avoid using the heat pack directly on bare skin for extended periods. Always use with the provided flannel cover.
- Do not fold, crush, or excessively bend the heating pad during use or storage.
- Inspect the device and power cord for any damage before each use. Do not use if damaged.
- Keep out of reach of children.
- Unplug the device from the power outlet when not in use.
- Consult a physician before use if you have any underlying medical conditions, especially circulatory problems, diabetes, or nerve damage.
- This product is UL and cUL classified, ensuring compliance with safety standards.
3. Package Contents
Verify that all items are present in the package:
- Chattanooga Theratherm Digital Moist Heat Pack (Standard size)
- Digital Hand Control Unit
- Flannel Cover
- Instruction Manual (this document)
4. Product Overview
The Theratherm Digital Moist Heat Pack consists of the heating pad and a digital hand control. The heating pad is covered with a specially designed flannel material to facilitate moisture retention from the air.

This image displays the Chattanooga Theratherm Digital Moist Heat Pack in its standard size. The heating pad, covered in flannel, is shown alongside its digital hand control unit, which allows for temperature and time adjustments.
Digital Hand Control Features:
- Temperature Setting: Allows adjustment of heat levels from 113°F to 167°F (45°C to 74°C).
- Timer Setting: Enables setting treatment sessions up to 60 minutes.
- Lockout Mode: Prevents accidental changes to settings during a treatment session.
- Automatic Shut-off: The device automatically turns off after the set treatment time for safety.
5. Setup
- Unpack: Carefully remove the heat pack and digital control unit from the packaging.
- Inspect: Check the heat pack, flannel cover, and power cord for any signs of damage. Do not use if damaged.
- Attach Flannel Cover: Ensure the flannel cover is properly placed over the heating pad. The flannel cover is designed to draw moisture from the air, which is essential for moist heat therapy.
- Connect Power: Plug the digital hand control unit into a standard electrical outlet.
6. Operating Instructions
Follow these steps for safe and effective use of your Theratherm Digital Moist Heat Pack:
- Position the Heat Pack: Place the heating pack on the desired area of the body, such as the shoulder, neck, or back. Ensure the flannel cover is in direct contact with the skin or a thin layer of clothing.
- Set Temperature: Using the digital hand control, set the desired temperature. Temperatures can be adjusted between 113°F (45°C) and 167°F (74°C). Start with a lower temperature and gradually increase if needed.
- Set Treatment Time: Set the desired treatment duration using the digital hand control. Treatment sessions can be set for up to 60 minutes.
- Activate: Press the start button on the digital control. The device will begin to heat up.
- Monitor: Periodically check the skin under the heat pack for any signs of excessive redness or discomfort. If discomfort occurs, reduce the temperature or discontinue use.
- Automatic Shut-off: The device will automatically turn off once the set treatment time has elapsed.
- Remove: After the treatment session, remove the heating pack from your body and unplug the unit from the power outlet.
Using Lockout Mode:
The lockout mode feature prevents accidental changes to the temperature or time settings during a treatment session. Refer to the digital hand control's specific instructions for activating and deactivating this mode.
7. Maintenance and Care
- Cleaning: Unplug the device before cleaning. The flannel cover can be removed and hand-washed with mild soap and water, then air-dried. Do not immerse the heating pad or digital control unit in water. Wipe the heating pad surface with a damp cloth if necessary.
- Storage: Store the heat pack in a cool, dry place. Avoid folding it tightly or placing heavy objects on top of it, which could damage the internal heating elements.
- Inspection: Regularly inspect the power cord and heating pad for any signs of wear, cuts, or damage.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Not plugged in; power outlet malfunction; damaged cord/unit. | Ensure unit is securely plugged into a working outlet. Check for visible damage. If damaged, discontinue use and contact support. |
| Heat pack not heating. | Temperature set too low; unit malfunction. | Increase temperature setting. If still not heating, contact support. |
| Heat pack feels too hot. | Temperature set too high. | Reduce temperature setting immediately. Ensure flannel cover is properly in place. |
| Digital control display not working. | Unit malfunction. | Unplug and re-plug the unit. If the issue persists, contact support. |
9. Specifications
- Model Number: 103X
- Brand: Chattanooga
- Material: Flannel
- Color: Yellow
- Number of Settings: 3 (likely referring to heat levels or timer increments)
- Temperature Range: 113°F to 167°F (45°C to 74°C)
- Treatment Time: Up to 60 minutes
- Special Features: Digital Hand Control, Lockout Mode, Specially Designed Flannel Cover, Automatic Shut-off
- Package Dimensions: 15.79 x 9.84 x 3.23 inches
- Item Weight: 4.3 Pounds
- Manufacturer: Chattanooga
10. Warranty Information
This Chattanooga Theratherm Digital Moist Heat Pack comes with a One-Year Limited Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from misuse, accident, unauthorized modification, or failure to follow the instructions in this manual.
For warranty claims or service, please retain your proof of purchase and contact Chattanooga customer support.
11. Customer Support
If you have any questions, require assistance, or need to report an issue with your Theratherm Digital Moist Heat Pack, please contact Chattanooga customer support. Refer to the product packaging or the official Chattanooga website for the most current contact information.
Online Resources: Visit the Chattanooga Store on Amazon





