• Code: U7-51
• Description: Vendor machine error
• Causes: Serial vendor machine trouble. Connector, harness connection trouble
• Remedy: Err.XX is displayed on the operation panel of the vendor. (XX is the detail code.) Repair the vendor machine referring to the detail code. Check the connector and the harness in the communication line.

• Code: U9-01
• Description: Touch panel trouble
• Causes: MFPC PWB trouble
• Remedy: Check the signal between the MFPC PWB and the touch panel IC. Replace the MFPC PWB.

• Code: UC-02
• Description: IPD/DOCC-ASIC (CPT function) trouble
• Causes: SCU PWB trouble. (IPD/DOCC-ASIC trouble.)
• Remedy: Replace the SCU PWB.

• Code: UC-12
• Description: IPD/DOCC-ASIC (CPT function) trouble [DSPF detection]
• Causes: DSPF PWB trouble (IPD/DOCC-ASIC trouble).
• Remedy: Replace the DSPF PWB.

• Code: UC-20
• Description: IPD/DOCC-ASIC (DOCC function) trouble
• Causes: SCU PWB trouble. (IPD/DOCC-ASIC trouble.)
• Remedy: Replace the SCU PWB.

• Code: UC-30
• Description: IPD/DOCC-ASIC (DOCC function) trouble [DSPF detection]
• Causes: DSPF PWB trouble (IPD/DOCC-ASIC trouble).
• Remedy: Replace the DSPF PWB.

• Code: UE-10
• Description: LCT1 suction fan motor trouble
• Causes: Motor lock Motor RPM abnormality Overcurrent to the motor Harness and connector connection trouble A3 2-stage LCT control PWB trouble
• Remedy: Use SIM04-03 to check the operation of the suction fan motor. Check connection of the harness and the connector. Replace the A3 2-stage LCT control PWB.

• Code: UE-11
• Description: LCT1 exhaust fan motor trouble
• Causes: Motor lock Motor RPM abnormality Overcurrent to the motor Harness and connector connection trouble A3 2-stage LCT control PWB trouble
• Remedy: Use SIM04-03 to check the operation of the exhaust fan motor. Check connection of the harness and the connector. Replace the A3 2-stage LCT control PWB.