Checked for location of leak from ventor motor area. While removing ventor motor, I found that one of the bolts holding the ventor motor to the transition assembly was not screwed into transition assembly. It was screwed in, but it was next to the hole of the transition assembly. That causes a small gap around the gasket for the ventor motor. I reattached ventor motor placing all bolts in the correct locations. Cycled system. System operating normal at this time. Job complete.