Instructions
Turn off your PS3 gaming console if the power indicator is flashing red and green alternately. This usually happens when the temperature inside the unit is too high.
Leave your gaming console off until it cools down, and then turn it back on.
Press and hold the "Power" button for at least 10 seconds to reset your gaming console if the power light is still blinking.
Keep objects away from the vents on your gaming console to ensure that adequate airflow exists around the system.