Remedy: Does this error recur? Yes Cycle the power. Replace the CU/ PU board.
Code: 111
Display: Service call 111: Error
Description: A duplex unit for another model was detected.
Remedy: Is a duplex unit provided for this model installed? No Install a correct duplex unit.
Code: 112
Display: Service call 112: Error
Description: A 2nd Tray for another model was detected.
Remedy: Is a 2nd Tray provided for this model installed? No Install a correct 2nd Tray.
Code: 113
Display: Service call 113: Error
Description: A 3rd Tray for another model was detected.
Remedy: Is a 3rd Tray provided for this model installed? No Install a correct 3rd Tray.
Code: 114
Display: Service call 114: Error
Description: A 4th Tray for another model was detected.
Remedy: Is a 4th Tray provided for this model installed? No Install a correct 4th Tray.
Code: 121
Display: Service call 121: Error
Description: High voltage power supply interface error
Remedy: Is the cable connecting the CU board to the high voltage power supply unit connected properly? Is there any defective contact point? Re-connect them properly. Check for defective contact points of the high voltage system. Replace the high voltage power supply unit.
Code: 122
Display: Service call 122: Error
Description: Low voltage FAN error
Remedy: Is the FAN (bottom right of the front) of the low voltage power supply block working? Is the FAN connector connected correctly? Check to make sure connection of the FAN connector. Replace the low voltage power supply unit. Replace the FAN motor. Replace the low voltage power supply unit.
Code: 123
Display: Service call 123: Error
Description: Abnormal environment humidity or unconnected humidity sensor
Remedy: Does this error recur? Yes Cycle the power. Replace the control panel board (PCQ board).