Cause : Internal fault number 3 comes when Calibration constant in EEPROM. The "calibration constant in EEPROM" typically refers to a parameter or value stored in the Electrically Erasable Programmable Read-Only Memory (EEPROM) of a device for calibration purposes.

EEPROM is a type of non-volatile memory that can retain data even when the power is turned off, making it suitable for storing important configuration settings, calibration data, and other critical information.