Chapter 6 Maintenance — [SELF TEST] indicationsENGLISH - 153[SELF TEST] indications[SELF TEST] can be checked in the [PROJECTOR SETUP] menu → [STATUS] → [SELF TEST].The following list shows the alphanumeric symbol that is displayed when an error or a warning has occurred andits details. Confirm “Action number”, and follow the measure in “Measure for error and warning” (x page 154).The input supply voltage is displayed only with the numeric value.Error/warning display Details Action numberU11 Intake temperature warning 1U12 Optical module temperature warning 1U13 Exhaust air temperature warning 1U14 Low temperature warning 2U16 Temperature warning for the front block of the light source (on the lens side) 1U18 Temperature warning for the rear block of the light source (on the air exhaust portside) 1U21 Intake temperature error 1U22 Optical module temperature error 1U23 Exhaust air temperature error 1U24 Low temperature error 2U25 Temperature error for the front block of the light source (on the lens side) 1U27 Temperature error for the rear block of the light source (on the air exhaust port side) 1H01 Battery replacement for the internal clock 3H11 Intake air temperature sensor error 4H12 Optical module temperature sensor error 4H13 Exhaust air temperature sensor error 4H14 Temperature sensor error for the front block of the light source (on the lens side) 4H16 Temperature sensor error for the rear block of the light source (on the air exhaust portside) 4F15 Luminance sensor warning 4F16 Angle sensor error 4F18 Air pressure sensor error 4F50 Heat pipe fan 1 warning 4F51 Heat pipe fan 2 warning 4F52 DMD fan warning 4F53 Circuit intake fan warning 4F54 Exhaust fan 1 warning 4F55 Exhaust fan 2 warning 4F56 Center fan warning 4F61 Light source driver communication error 4F85 Color wheel error (FM) 4F86 Color wheel error (FPGA) 4F90 FPGA configuration error 4F97 Geometric adjustment board communication error 4F99 Internal error 4FE1 Heat pipe fan 1 error 4FE2 Heat pipe fan 2 error 4FE3 DMD fan error 4FE4 Circuit intake fan error 4FE5 Exhaust fan 1 error 4FE6 Exhaust fan 2 error 4FE7 Center fan error 4FH0 PW ERROR (FM/SUB) 4FL1 Light source unit error 5FL5 Light source bank 1 warning 4FL6 Light source bank 2 warning 4FL7 Light source bank 3 warning 4FL8 Light source bank 4 warning 4Notef The self-diagnosis display and the details of the malfunction may be different.