This alarm means that the Temperature Sensor is broken or not properly connected.
If you get this alarm on the CEC, press de triangle located at the back right of the screen.
But it can also mean that the sensor was hot and you turned the machine off and then on again.
If, when the machine is turned on, the sensor is hot above 75 degrees, you also get this error message.
If you press Acknowledge, the error disappears.
