5. Troubleshooting
Code 8521: “Tilt rotation not allowed” (Error)
This error code is pr obably preceded by the warning code 8520: “Tilt rotation not allowed” . The same troubleshooting table c an be
applied to.
Code 8550: “Lamp runtime message exceeded” (Warning)
Situation Solution
The lamp inside the lamp house is
about to exceed its maxim um run
time.
Replace the lamp as soon as possible. See "Removing the xenon lam p from the lamp
house", page 123.
Code 8551: “Lamp runtime warning exceeded” (Warning)
Situation Solution
The lamp inside the lamp house is
about to exceed its maxim um run
time. This is a second warning.
Replace the lamp as soon as possible. See "Removing the xenon lam p from the lamp
house", page 123.
Code 8552: “Lamp runtime maximum exceeded” (Warning)
Situation Solution
The lamp inside the lamp house has
exceeded its maximum run time.
Replace the lam p immediately. See "Removing the xenon lamp from the lamp house",
page 123.
Code 8553: “Lamp runtime shutdown exceeded” (Warning)
Situation Solution
The lamp inside the lamp house has
exceeded its maximum run time.
Shutdown the projector immediately. Replace the lamp prior to restart the projector. See
"Removing the xenon lamp from the lamp hous e", page 123.
Code 8600: “Check cooling liquid level” (Warning)
Situation Solution
One of m ore DMD s have a high
temperature.
1. Check the level of the liquid cooling. Add cooling liquid if appropriate. See "L
iquid
cooling circuit", page 239.
2. Check dust filters. Ensure that the projector air inlets are not blocked.
3. Make sure that the ambient temperature is within specs: lower then 40°C (104°F).
Code 8601: “Check dust filters” (Warning)
Situation Solution
Filthy dust filter cau ses a too high
DMD temperature.
Replace a filthy dust filter with a new one.
Code 8602: “Check airfl ow” (Warning)
Situation Solution
A blocked air inlet causes a too high
Lamp House temperature.
Ensure that th e air inlet at the left lower front of the projector is
not block ed.
Code 8603: “Overtemperature dimming” (Warning)
Situation Solution
The projector has automatically
reduced the lamp power due to too
high internal temperatures.
Check for error/warning messages in the projector notifications to find t h e precise cause
of the over temperature.
Code 8604: “Check cooling liquid level every 6 months” (Warning)
Situation Solution
Six months between last s ervicing.
• Check the level of the liquid c ooling. Add cooling liquid if appropriate. See "Liquid
cooling circuit", page 23 9
• Ensure that all preventative maintenance actions are done. S ee service manual
chapter "Preventa tive maintenance actions", page 19.
88 R5905312 HDF W SERIES 24/01/2013
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