Remedy: 1 Malfunction of the main firmware. Install the latest main firmware. 2 Main PCB failure. Replace the main PCB ASSY.
Code: E900
Description: An error occurred while initializing the NFC.
Remedy: 1 Connection failure of the panel PCB flat cable. Reconnect the panel PCB flat cable.. 2 Connection failure of the NFC PCB flat cable. Reconnect the NFC PCB flat cable. 3 Panel PCB failure. Replace the panel PCB ASSY. 4 NFC PCB failure. Replace the NFC PCB ASSY. 5 Main PCB failure. Replace the main PCB ASSY.
Code: EC00
Description: A USB device not within the specification is connected to the USB terminal, resulting in over current.
Remedy: <User Check> • Disconnect the USB device from the USB flash memory port and turn the machine OFF. Turn the machine ON again after a while. • Replace the USB device with a different one. 1 Main PCB failure. Replace the main PCB ASSY.
Code: F900
Description: The spec code was not entered correctly.
Remedy: 1 The power was turned OFF while function code 74 was running. Reenter the spec code. 2 Main PCB failure. Replace the main PCB ASSY.