1. Important Safety Instructions
Please read all instructions carefully before using your CAROMIO Electric Blanket. Retain this manual for future reference. Failure to follow these instructions may result in fire, electric shock, or injury.
- Do not use with infants, children, incapacitated persons, or anyone insensitive to heat.
- Do not use if wet. Always ensure the blanket and controls are completely dry before use.
- Avoid folding, bunching, or creasing the blanket during use. This can cause overheating in localized areas.
- Do not insert pins or other metallic objects into the blanket. This can damage the heating elements and create a shock hazard.
- Keep controls away from moisture. Do not immerse controls in water or other liquids.
- Unplug the blanket from the power outlet when not in use.
- Do not use with a generator, power inverter, or extension cord. Connect directly to a wall outlet.
- Regularly inspect the blanket and power cord for any signs of wear or damage. If damaged, discontinue use immediately and contact customer support.
- This electric blanket is ETL certified and equipped with intelligent NTC&PTC heating wires for overheat protection and an automatic shut-off feature to ensure safe operation.

Image: Overheat protection mechanism ensures safety by automatically stopping heating if overheating is detected.

Image: Detailed view of the heating wire construction, including resin detection, PVC protective layer, heating wire, temperature detection line, and plastic film layer.
2. Product Overview
The CAROMIO Electric Blanket provides warmth and comfort with its soft flannel and sherpa construction, featuring a waffle pattern. It includes dual controls for personalized heating and multiple safety features.
- Material: 240GSM jacquard flannel (top) and 210GSM sherpa (bottom).
- Heating System: Intelligent NTC&PTC heating wires for fast and consistent warmth.
- Control: Dual handheld controllers for independent temperature adjustment.
- Heat Settings: 5 adjustable heat levels, up to a maximum of 115°F.
- Auto-Off Timer: 10-hour automatic shut-off for Queen size blankets.
- Safety: ETL certified with overheat protection.

Image: The CAROMIO Queen size electric blanket laid out on a bed, showing the dual controllers.

Image: Cross-section diagram illustrating the blanket's layers: 240 GSM Soft Thicken Flannel, Non-woven Fabric, PTC/NTC Heating Wires, and 210 GSM Sherpa.
3. Setup and Installation
Follow these steps to properly set up your electric blanket:
- Unpack: Carefully remove the electric blanket and controllers from the packaging. Retain all packaging materials for storage if needed.
- Inspect: Before first use, inspect the blanket and power cords for any visible damage. Do not use if any damage is found.
- Position the Blanket: Lay the electric blanket flat on your bed, ensuring it is spread evenly without any folds or creases. The connectors for the controllers should be positioned at the foot end of the bed.
- Connect Controllers: Locate the connection ports on the blanket. Firmly plug each controller's cord into its respective port on the blanket. Ensure a secure connection.
- Connect to Power: Plug the power cord of each controller directly into a standard 120V AC wall outlet. Do not use extension cords or power strips.
4. Operating Instructions
Your CAROMIO Electric Blanket features dual controls, allowing two users to independently adjust their preferred heat settings.

Image: Dual handheld controllers showing 5 heating levels, 10-hour auto-off, and ETL certification.
- Power On/Off: Press the power button on each controller to turn the blanket section on or off.
- Adjust Heat Settings: Use the heat level buttons (1-5) on each controller to select your desired warmth. Level 1 is the lowest heat, and Level 5 is the highest (up to 115°F). The indicator lights will show the selected heat level.
- Auto-Off Timer: The Queen size blanket is designed with a 10-hour automatic shut-off feature for safety and energy saving. After 10 hours of continuous operation, the blanket will automatically turn off. To restart, simply press the power button again.
- Dual Control: Each controller operates one half of the blanket, allowing individual temperature preferences for two users.

Image: Visual representation of the dual control feature, showing two distinct temperature zones on the blanket.
5. Care and Maintenance
Proper care will extend the life of your electric blanket. Always follow these instructions:
- Disconnect Power: Before cleaning, always unplug the blanket from the wall outlet and disconnect the controllers from the blanket.
- Machine Wash: Machine wash the blanket in cold water on a gentle cycle. Do not bleach.
- Drying: Tumble dry on a low heat setting. Gently stretch the blanket back to its original size while damp to maintain its shape. Ensure the blanket is completely dry before reconnecting the controllers or storing.
- Do Not Iron: Ironing can damage the internal heating elements.
- Do Not Dry Clean: Dry cleaning solvents can damage the insulation of the heating elements.
- Storage: When not in use, store the blanket in a cool, dry place. Avoid folding it tightly or placing heavy objects on it, which could damage the heating wires.

Image: An electric blanket being loaded into a washing machine, with an inset showing how to disconnect the power connection before washing.
6. Troubleshooting
If you experience issues with your electric blanket, please refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Blanket is not heating. | Power cord not securely plugged in. Controller not connected properly. Power outlet is not functioning. Auto-off timer has expired. | Ensure both the controller's power cord and the controller-to-blanket connection are firm. Test the outlet with another appliance. Press the power button on the controller to restart the blanket. |
| Blanket is not heating evenly. | Blanket is folded or bunched. | Spread the blanket flat and ensure there are no folds or creases. |
| Controller lights are off or flashing. | Internal safety mechanism activated (e.g., overheat protection). | Unplug the blanket from the wall outlet for 10-15 minutes, then plug it back in and try again. If the issue persists, contact customer support. |
If the problem persists after attempting these solutions, please contact CAROMIO customer support for assistance.
7. Product Specifications
| Feature | Specification |
|---|---|
| Brand | CAROMIO |
| Model Name | HMHB-Q8490 |
| Size | Queen (84"L x 90"W) |
| Color | White-waffle |
| Material | Flannel, Sherpa |
| Heating Levels | 5 |
| Maximum Temperature | 115°F |
| Auto-Off Timer | 10 Hours (for Queen size) |
| Control Type | Dual Handheld Controllers |
| Certification | ETL Certified |
| Item Weight | 9.24 pounds |
| UPC | 198723305523 |
8. Warranty and Customer Support
CAROMIO provides a warranty for this electric blanket. If you encounter any quality issues with the product, please reach out to us via email. We are committed to providing a solution for your order within one year from the date of purchase.
For further assistance, troubleshooting, or warranty claims, please contact CAROMIO customer support through the retailer's platform or the contact information provided with your purchase.