820-01598 fast fan slow

[Kyle93]

This arrived with fans spinning fast and slowness. Replaced Q5852-Q5854 but no change. What should be checked next and which program is recommended to find which sensor is at fault. Trackpad works as fine

 

[2informaticos]

Is the battery correctly recognized?

 

[Kyle93]

Yes

 

[2informaticos]

Try to install HWSensors, Macs Fan Control, or iStat Menus.

 

[Kyle93]

heatpipe #1&2 are 128C. Replaced U5850/U5870 but no change

 

[Kyle93]

cpu proximity is 136c

 

[Kyle93]

solved with new trackpad cable

 

[2informaticos]

Disconnect internal LCD and test with external monitor.
This way discard ALS issue.