4MOT/4/40000002 :CPU-xxx
CPU fan/blower, located next to left speaker (logic board has to be removed to replace CPU blower)
Verify that the CPUblower/ fan cable is securely connected to the left side of the logic board and that there are no obstructions that would prevent the blower/fan from rotating. Replace fan if the error continues.
Normal fan operation, except the CPU blower
Note: Make sure black mylar tape along the bottom of LCD panel is not obstructing fan blades, if so, cut tape and re-stick to LCD.