• Code: 750-0001-05
• Description: System software error
• Causes: Model information of the DC Controller did not match the notification from the controller.
• Remedy: Reinstall the system software using SST or a USB memory.

• Code: 753-0001-00
• Description: Download Error
• Causes: Update of the system software failed.
• Remedy: Perform the following in the order while checking whether the error is cleared. 1. Turn OFF and then ON the main power. 2. Reinstall the system software using SST or a USB flash drive. 3. Replace the FLASH PCB, and reinstall the system software. 4. Collect debug log and contact the sales company.

• Code: 753-0001-05
• Description: Download error
• Causes: System Software Update Error Error occurs when updating system software of uninstalled options
• Remedy: [Remedy] 1. Turn OFF and then ON the main power. 2. Reinstall the system software using SST or a USB memory. 3. Replace the FLASH PCB, and reinstall the system software. 4. Collect debug log and contact the sales.

• Code: 760-0001-00
• Description: Main Controller PCB internal error
• Causes: An error was detected in the Main Controller PCB.
• Remedy: Check/replace the Main Controller PCB

• Code: 800-0000-05
• Description: Power condition unmatched error between Main Controller PCB and DC Controller PCB
• Causes: The power of DC controller PCB still keep ON even if it reaches 90 sec after detecting the power OFF by the main controller PCB.
• Remedy: [Remedy] 1. Wait till the power is turned off. 2. Turn the main power switch ON.

• Code: 804-0000-00
• Description: Power Supply Fan error
• Causes: It was detected that the Supply Fan was locked.
• Remedy: [Related parts] R1.00 - Harness between the AC Driver PCB (UN30/J117) and the Power Supply Cooling Fan (FM5/ J712) - Power Supply Cooling Fan (FM5) - AC Driver PCB (UN30) [Remedy] Check/replace the related harness/cable, connector and parts.

• Code: 804-0000-05
• Description: Failure of the Power Supply Cooling Fan (FM5)
• Causes: When lock signal is detected for 5 sec while the Power Supply Cooling Fan (FM5) is stopped. * The same condition is detected after the error retry is performed.
• Remedy: [Related parts] - Harness connecting from the DC Controller PCB (UN2/J117) to the Power Supply Cooling Fan (FM5/J712) - Power Supply Cooling Fan (FM5) [Remedy] 1.Check/replace the related harness/cable, connector and parts. 2.Replace the Power Supply Cooling Fan.

• Code: 804-0001-05
• Description: Unstable rotation of the Power Supply Cooling Fan (FM5)
• Causes: The fan stop signal is detected for 5 minutes or more and the retry operation fails 4 times continuously after generating the ON signal of the Power Supply Cooling Fan (FM5).
• Remedy: [Related parts] - Harness connecting from the DC Controller PCB (UN2/J117) to the Power Supply Cooling Fan (FM5/J712) - Power Supply Cooling Fan (FM5) [Remedy] 1.Check/replace the related harness/cable, connector and parts. 2.Replace the Power Supply Cooling Fan.