Product Overview
The Frost King AC2H Window Air Conditioner Cover is designed to protect your window air conditioner unit from outdoor elements during the off-season. Constructed from durable polyethylene, this cover helps block out water, ice, dust, and leaves, contributing to energy savings by preventing drafts.
- Blocks Out Water, Ice, Dust & Leaves
- Durable Polyethylene Material
- Designed for Window Air Conditioner Units

Image: The Frost King AC2H Window Air Conditioner Cover, silver-gray, installed on an outdoor window air conditioner unit, providing protection.
Safety Information
Please read and understand all safety information before installing or using this product.
- Ensure the air conditioner unit is turned off and unplugged before installation.
- Use appropriate safety measures, such as a stable ladder, if installing on elevated units.
- Do not use the cover while the air conditioner unit is in operation.
- Keep the cover away from open flames or excessive heat sources.
- Periodically check the cover for secure attachment, especially during high winds.
Setup and Installation
Follow these steps to properly install your Frost King AC2H Window Air Conditioner Cover:
- Prepare the Unit: Ensure your window air conditioner unit is clean and dry. Turn off and unplug the unit from its power source.
- Slip the Cover: Carefully slip the cover over the exterior portion of the air conditioner unit.
- Secure Corners: Make sure the sewn-in elastic corners of the cover are fitted snugly around the bottom front corners of the air conditioner unit. This helps to hold the cover in place.
- Fasten Strap: Locate the elastic strap attached to the cover. Wrap this strap under and around the air conditioner unit. Slip the hook on the strap into the ring to fasten it securely. Adjust the strap for a tight fit to prevent wind from dislodging the cover.

Image: The back of the product packaging illustrating the three-step installation process for the window air conditioner cover.

Image: The Frost King AC2H cover folded, highlighting the elastic strap with a hook and ring mechanism used for securing the cover.
Operating (Seasonal Use)
The Frost King AC2H Window Air Conditioner Cover is intended for seasonal use, primarily during colder months when the air conditioner is not in operation. Its purpose is to insulate the unit and prevent cold drafts from entering your home, while also protecting the exterior of the unit from harsh weather conditions.
- Install the cover before the onset of cold weather or when the air conditioner will not be used for an extended period.
- Remove the cover when the air conditioner is needed for cooling.
Maintenance
Proper maintenance will extend the life of your air conditioner cover:
- Cleaning: Clean the cover periodically with a damp cloth and mild soap. Rinse thoroughly and allow it to air dry completely before storage. Do not use harsh chemicals or abrasive cleaners.
- Storage: When not in use, fold the cover neatly and store it in a cool, dry place away from direct sunlight and extreme temperatures.
- Inspection: Before each season of use, inspect the cover for any signs of wear, tears, or damage. Replace if necessary to ensure optimal protection.
Troubleshooting
If you encounter issues with your air conditioner cover, consider the following:
- Cover Does Not Fit: Verify the dimensions of your air conditioner unit against the cover's dimensions (18"L x 27"W x 16"H). Ensure the cover is oriented correctly.
- Cover Dislodges in Wind: Ensure the elastic corners are securely fitted and the elastic strap is tightly fastened around the unit. Adjust the strap for maximum tension.
- Water Accumulation: Ensure the cover is installed correctly and taut to allow water to run off. Check for any tears or punctures in the material.
Specifications
| Model Number | AC2H |
| Brand | Frost King |
| Material | Polyethylene (PE) |
| Color | Gray |
| Dimensions (L x W x H) | 18" x 27" x 16" |
| Item Weight | 4.8 ounces |
| Water Resistance Level | Water Resistant |
| Strap Type | Stretchable |
| UPC | 077578030104 |
Warranty Information
This product comes with a manufacturer's warranty. For detailed information regarding warranty coverage, terms, and conditions, please refer to the documentation included with your purchase or contact Frost King customer support directly.
Support and Contact Information
For further assistance, questions, or support regarding your Frost King AC2H Window Air Conditioner Cover, please contact the manufacturer:
- Manufacturer: Thermwell Products Co., Inc
- Website: Visit the official Frost King Store or Frost King Instructions Page for additional resources.
- Phone: 1-800-FROST 20 (as indicated on product packaging)
- Additional Documents: An official Instructions for Use (IFU) PDF document is available here.