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Self-diagnosis display
There is a self-diagnosis display located on the side of the projector (p. 15) for automatically displaying the
corresponding details when an error or warning occurs.
Self-diagnosis
display
Details Remedy
U04 Air filter is blocked Clean the air filter unit.•
U11 Intake air temperature warning
Check whether there is sufficient space around the projector.
•
The ambient temperature is too high. Use the •
projector where the ambient temperature is less than
40 C (35 C in high altitude mode).
U12 Optical module temperature warning
U13 Lamp ambient temperature warning
U14 Low temperature warning
The ambient temperature is too low. Use the projector •
where the ambient temperature is at least 0 C.
U15
The ambient temperature is 40 C or more,
so light output is being limited to protect the
projector.
If 100% brightness is required, use the projector •
where the ambient temperature is less than 40 C
(35 C in high altitude mode).
U21 Intake air temperature error
Check whether there is sufficient space around the projector.
•
The ambient temperature is too high. Use the •
projector where the ambient temperature is less than
40 C (35 C in high altitude mode).
U22 Optical module temperature error
U23 Lamp ambient temperature error
U24 Low temperature error
The ambient temperature is too low. Use the projector •
where the ambient temperature is at least 0 C.
U41 Lamp 1 operating time warning
The lamp replacement period has arrived. Replace •
the lamp.
U42 Lamp 2 operating time warning
U43 Lamp 3 operating time warning
U44 Lamp 4 operating time warning
U51 Lamp 1 error
Lamp has not turned on. Wait for the lamp to cool •
down and then turn the power back on. If the lamp
still does not turn on, contact your dealer.
U52 Lamp 2 error
U53 Lamp 3 error
U54 Lamp 4 error
U61 Lamp 1 : 2 000 hour operating time exceeded
The lamp has exceeded its replacement period. •
Replace the lamp straight away.
U62 Lamp 2 : 2 000 hour operating time exceeded
U63 Lamp 3 : 2 000 hour operating time exceeded
U64 Lamp 4 : 2 000 hour operating time exceeded
U70 Air filter unit not installed Install the air filter unit.•
U71 Lamp 1 not installed
Install the lamp. If the error display does not •
disappear even after you reinstall the lamp, consult
your dealer.
U72 Lamp 2 not installed
U73 Lamp 3 not installed
U74 Lamp 4 not installed
U81
AC power supply voltage drop warning (less
than 99 V)
AC power supply voltage input has dropped. Check •
that there is sufficient electrical wiring capacity for the
projector’s power consumption requirements.
U91 Lamp unit cover is not closed Close the lamp unit cover. •
H01 Internal clock battery replacement
The battery needs to be replaced. Consult your •
dealer.
H11 Air intake temperature sensor error
The internal circuitry is not working properly. If turning •
the main power off and back on again does not clear
the error display, consult your dealer.
H12 Optical module temperature sensor error
H13 Lamp ambient temperature sensor error
H18 Clogged filter sensor error
F11 Shutter error
F12 Dynamic iris error
F13 Air filter unit error
F21 2.5 V DC error
F22 3.3 V DC error
F23 5.0 V DC error