The fan was making a whistle noise... and the CPU was too hot for MBA to work normally.
Changed the fan. Cleaned the inside of the laptop from dust…
Clean the inside at least twice a year…
When a fan can't do the job alone, pair it with a heat sink. Includes fan and attached heat sink
Existing fan was loud
The repair went according to instructions. I like how all the different screws are identified. Made it really easy for reinstallation.
Ifixit shows instructions on how to remove the fan from the heatsink but does not offer the option of buy the fan only. I had to buy the heatsink . . .
The machine began to run a little hot with excessive fan activity. Eventually no fan, just a faint clicking sound and rising temperatures, which I diagnosed from various blogs as fan failure.
I hadn't checked the heatsink vs processor temperatures so couldn't confirm the state of the heat sink / . . .
So, my original MacBook Air's fan started making a *horrible* very, un-Apple-like screeching sound. I added some lubrication and that helped a little, but in the end it appeared the fan unit itself had just worn out after working at thousands of RPMs for many hours thru the years.
The repair took abo . . .