• Code: 122
• Display: Service Call 122: Error
• Description: Low-voltage power supply fan error. Low-voltage power supply temperature error.
• Remedy: 1) Is fan in low-voltage power supply unit operating? 2) Error reoccurs after replacing fan motor.
  Replace fan motor. Replace low-voltage power supply. Replace low-voltage power supply.

• Code: 123
• Display: Service Call 123: Error
• Description: Improper environment humidity detected by sensor.
• Remedy: 1) Is error message displayed? 2) Does error reoccur?
  Turn ON power again. Replace humidity sensor.

• Code: 124
• Display: Service Call 124: Error
• Description: Improper environment temperature detected by sensor.
• Remedy: 1) Is error message displayed? 2) Does error reoccur?
  Turn ON power again. Replace humidity sensor.

• Code: 125
• Display: Service Call 125: Error
• Description: Error detected at MT home position.
• Remedy: 1) Is error message displayed? 2) Does error reoccur?
  Turn ON power again. Replace MT.

• Code: 126
• Display: Turn power OFF and wait 126: Dew error
• Description: Sensor dew error.
• Remedy: Sensor dew error detected. Turn ON power after a while.

• Code: 130
• Display: Service Call 130: Error
• Description: Temperature rise detected at LED head.
• Remedy: 1) Is error message displayed? 2) Does error reoccur?
  Leave alone for 30 min. Turn power OFF. Leave for 30 min., then turn power ON. Replace LED head.

• Code: 131, 132, 133, 134
• Display: Service Call 131: Y Head 132: M Head
  133: C Head 134: K Head
• Description: Same unit not detected upon power ON or opening cover.
• Remedy: 1) Is error message displayed? 2) Is LED head properly set? 3) Does error reoccur?
  Confirm that LED head is set properly. Turn power ON again. Replace LED head assembly.

• Code: 140, 141, 142, 143
• Display: Service Call 140: Y ID 141: M ID
  142: C ID 143: K ID
• Description: Error detected at proper ID position.
• Remedy: 1) Is error message displayed? 2) Does error reoccur?
  Turn power ON again. Replace drum assembly.