Chosen Solution
After upgrading to SDD the fan runs at a constant 3800 rpm. I installed OWC Digital Thermal and when that didn’t work I installed Mac Fan Control. The readings for hardware on MFC are normal with nothing peeking over 100°F/37°C. No matter what profile I apply in MFC the fans still spin at 3800rmp. Ran Apple Hardware Test which returned the following error: 4MOT/4/40000003 Main-3827 Update (10/13/2016) Maybe it’s the battery?
Update (10/13/2016) Dan, I noticed the “Main 3827” in the error code is the fan speed. “Main” is the only option in Fan tab of Preference window.
Update (09/28/2016) Maybe it’s the internal battery?
The AHT error is a fan error. Unlike the older systems this one only has one (main). Did you disconnect the fan in the process of disconnecting the speaker and not plug it back in correctly? The other possibility is the OWC inline thermal sensor is defective. You might want to call OWC to see if they have an idea here.
