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1 Right fan is running at full speed, PPF003 & PPF004 Error Codes.
Hi!
Something happened to my MacBook recently. The day before the incident, it was working normally, I was browsing the internet on it for a few hours. The next day, when I turned it on, the right fan started running at maximum speed. I reset the NVRAM and SMC, but it didn't help. I ran Apple diagnostics and it showed errors PPF003 & PPF004, so I decided to replace the right fan. Unfortunately, the replacement did not help. I also changed the thermal paste just in case and checked if the fans were clogged, but everything is in good order. Additionally, I unplugged and reconnected the keyboard connector. I tried to control the fan speed using the Macs Fan program, but the speed is locked at maximum (8000 rpm) and cannot be reduced in any way. The left fan can be controlled normally. I checked the temperatures and in idle, they are higher than usual, sometimes even above 60-70 degrees Celsius, whereas before I used to see around 50 degrees.
One interesting phenomenon I observed is that when I press the keyboard cable connector harder, the right fan starts running slower or even stops completely for a second before returning to maximum speed. Therefore, I plan to replace this cable as well.
The laptop has not been dropped or exposed to any water damage. Is it possible for something like this to happen overnight? Or is there anything else I can check before ultimately sending the MacBook to a service center?
Questa è una buona domanda?
37 
5 Commenti
great information
da Aquacentrics
I have the same problem(( but having a MBP 16 2019 A2141
Do you need to replace the whole keyboard or there is a way of replacing keyboard cable only?
da Vlad Korotkevich
You likely only need the cable. But if you had a liquid spill it’s likely more than the cable.
da Dan
Sounds promising but could you point me to the part number or the name of the cable I need? I found only the whole keyboard part but not the keyboard cable(
Did you mean a touchpad cable?) this one I found
da Vlad Korotkevich
Probably you already know by now, but the 16" model A2141 appears to have a non-removable cable.
On the 13" model that you're commenting on, the cable is replaceable.
da drlarsen