Quote Originally Posted by jick.cejoco View Post
Depends. If it is thermostatic expansion valve type, it must be hot. If it's cold when the A/C is on, it means the drier is restricted.
If it is cycling orifice tube type, it must be cold. If it's not cold, it may mean undercharged or overcharged.
Hi,

Can you explain the difference between the two, thermostatic expansion valve and cycling orifice tube type?

From what I know, a thermostatic expansion valve works by sensing the temperature after the solenoid valve going to the evaporator. From there, the liquid inside the bulb will expand and push through the needle like opening of the thermostatic expansion valve thereby throttling the refrigerant.

I might have mixed everything or something is not in the proper order or everything is incorrect.

I hope I'm not asking too much.

EDIT: I found this article. However, I don't simply trust online contents so I'm relying more to textbooks. Unfortunately​, I don't have my textbook right now. The consequences of always missing my classes​...

Cycling Clutch Orifice Tube vs Thermostatic Expansion Valve