1001, 1002, 1009
Normal charging is not possible for some reason. If this message keeps appearing, request servicing.

Remove the charger cable from the watch, turn off the watch, and then try charging again. Use only the AC adaptor and charger cable that comes with the watch for charging.

If this message/error code keeps appearing, it could mean that the chargeable battery has deteriorated. Request servicing by your original retailer or authorized CASIO service center.

1003
Too hot to charge.

Charge the watch in an area where the ambient temperature is between 10°C and 35°C (50°F and 95°F).

1004
Too cold to charge.

9000
Some problem occurred with the watch. Power will turn off shortly.

To restart the watch, first charge it for at least one hour. Next, hold down the power button for about 12 seconds until the display goes white.

9001, 9002, 9003
Some problem occurred with the watch. Power will turn off shortly.

Take your watch to an authorized CASIO service center or to your original retailer for inspection and repair.

9010
Watch temperature is high. Power will turn off to protect it.

Remove the watch from your wrist and leave it in a location that is not exposed to direct sunlight, where the temperature is between 10°C and 30°C (50°F and 86°F) to allow the watch to cool down. You will be able to turn the watch on again after it reaches a lower temperature.