- Check that the remote control is operating on the correct frequency setting.
- Check that the remote control is paired with the device it needs to control.
- Verify that the buttons have been programed correctly and the function is set up properly.
- Check the batteries in the remote control to ensure they are charged and fresh.
- Check the condition of the infrared receiver on the device to ensure it is not blocked or damaged.
- Check if the remote is working from another device or location.
- If all else fails, perform a factory reset of the remote control.