1. Indicates a miscommunication between the blanket and controller
2. Check that the controller is properly plugged into the blanket (snapped into place)
3. For Queen/King blankets: If the F2 message continues, try swapping controllers
4. If the problem continues please note the error code and call customer service
5. Your blanket may not broken and just requires some adjustment
6. Customer service is available from 9:00 AM To 5:00 PM Monday through Friday CST
Plug controllers directly into the wall or through a power strip. The use of extension cords is not recommended.