|
Re: Probe stuck on defrost
The part that controls and moves the door(s) in you heating A/C system is vacuum operated. Some call it a vacuum motor. It has a vacuum port on one side and a lever on the other side to control the door's position. There is a membrane in the center to be moved by the vacuum applied to it. The fact that your system is on defrost pretty much narrows it down to this vacuum motor.
|