-6-The projector will be automatically turned off when the internal temperature of the projector is abnormally high, orthe cooling fans stop spinning, or the power supplies in the projector are failed.- If the WARNING indicator is flashing, it may detect the abnormal temperature inside the projector. Check the follow-ing possible causes and wait until the POWER indicator stops flashing, and then try to turn on the projector.- If the WARNING indicator lights red, it may defect the cooling fans or power supply circuits. Check fans operationand power supply lines referring to the chapter “Power supply & protection circuit” in the Chassis Block Diagramsection.Possible causes- Air filters are clogged with dust particles. Remove dust from the air filters by following instructions in the “Air filtercare and cleaning” below.- Ventilation slots of the projector are blocked. In such an event, reposition the projector so that ventilation slots arenot obstructed.- Check if projector is used at higher temperature place (Normal operating temperature is 5 to 35 ˚C or 41 to 95˚F)Warning temperature and power failure protectionthe projector is shut down and the WARNINGindicator lights red.When the projector detects an abnormal condition, itis automatically shut down to protect the inside of theprojector and the WARNING indicator lights red. In thiscase, unplug the AC power cord and reconnect it, and thenturn the projector on once again to verify operation. If theprojector cannot be turned on and the WARNING indicatorstill lights red, unplug the AC power cord and contact theservice station.CAutIONDO NOT LEAVE THE PROJECTOR WITH THEAC POWER CORD CONNECTED UNDER ANABNORMAL CONDITION. IT MAY RESULT IN FIREOR ELECTRIC SHOCK.top ControlWARNING emit ared lightCircuit Protections