• Code: 3000
• Description: AC shut-off
  The AC power has been shut off due to a power failure, unplugged, PSH BOARD failure, or MAIN BOARD failure or the like.
• Remedy: 1. Replace the PSH BOARD. 2. Replace the MAIN BOARD.

• Code: Dxxy
• Description: Service call for FW debugging
  This error is intended to be used in the product development stage. It is supposed to not occur to marketed products, but may occur due to an unexpected cause such as external noises.
• Remedy: 1. Re-install the firmware. 2. Replace the MAIN BOARD.

• Code: Fxxx
• Description: CPU related service call
  There is something wrong with the firmware
• Remedy: 1. Re-install the firmware. 2. Replace the MAIN BOARD.