I could not get up on my RV to take a picture. I found a website with an identical picture of my vent cover at Dometic Refrigerator Roof Vent Cap and Base New Style 3311236
It only leaked when it rained and was not leveled. Where it is parked it is not so unlevel that any wheel would leave the ground to level it. In the picture you can see a row of vent holes. To see if the water was coming into the vent holes I covered the line of vents holes on both sides of the cover to see if that would stop the water when it rained. It did stop the water so I believe the rain is coming in the vent holes when the RV is not leveled. I guess my question would be is does anyone have a suggestion for a replacement for my vent cover.
As far as the drain tube and the operation of the refrigerator. All water has leaked in while parked in my driveway in the last month without the refrigerator being operated at all.
Thanks for your replies.