• Code: SC990
• Description: Software performance error The software makes an unexpected operation.
• Causes: • Defective software • Defective controller • Software error
• Remedy: 1. Turn the main switch off and on. 2. Reinstall the controller and/or engine main firmware. 3. See NOTE 1 at the end of the SC table.

• Code: SC998
• Description: Application start error No applications start within 60 seconds after the power is turned on.
• Causes: • Loose connection of RAM-DIMM, ROMDIMM • Defective controller • Software problem
• Remedy: 1. Turn the main switch off and on. 2. Check if the RAM-DIMM and ROMDIMM are properly connected. 3. Reinstall the controller system firmware. 4. Replace the controller.