• Code: 991
• Description: Unexpected software error Unexpected software error detected, which does not affect operation of the machine.
• Causes: The machine does not stop and the SC code is not displayed. The machine automatically recovers. However, the SC code is logged in the engine summary sheet (SMC).
• Remedy:

• Code: 998
• Description: Application start error No applications start within 60 seconds after the power is turned on.
• Causes: • Loose connection of RAM-DIMM, ROM-DIMM • Defective controller • Software problem
• Remedy: 1. Turn the main switch off and on. 2. Check if the RAM-DIMM and ROM-DIMM are properly connected. 3. Reinstall the controller system firmware. 4. Replace the controller.

• Code: 999
• Description: Software update error Software updating failed.
• Causes: • Controller DIP SW1 setting incorrect. • Defective software on IC card. • Controller software download error.
• Remedy: 1. Try downloading the controller firmware again. 2. Replace the controller.