Quote Originally Posted by jakewise View Post
Surprisingly, it did not. I already set it to maximum but still shuts off even if interior is not that cold yet compared to the electronic thermosensor. I really wondered why it is like that, that’s why I presumed that the calibration of the mechanical thermostat is different from the electronic one. Hoping also that someone who is well versed on car refrigeration can chime in to comment on this issue if there is really a difference on the calibration of the manual to electronic thermostats.
There are other reasons why it would stop cooling prematurely. Some vehicles have safeties that will disengage the compressor when there are issues. Some of which are, over-charging/under-charging of the refrigerant, engine overheating, etc. It could also be the compressor clutch thermal fuse cutting supply to the coils (due likely to overheating or a short in the coil). These are just off the top of my head.

It's not my intention to make things complicated... just saying that unless you're absolutely sure that the above-mentioned temp sensor is really defective, I suggest you have it looked up by a qualified A/C technician.