The temperature around the machine is too low. Adjust the room temperature.

The internal temperature of the machine has fallen below that at which it can operate.

This message appears when the temperature falls to 19°C (66.2°F) or lower during startup or operation (when recovering from sleep mode).

Bring the installed location to a temperature at which operation is possible (20 to 30°C [68 to 86°F]) and allow the machine to come to room temperature.