good question, Mark. A fairly long story, however. I just got my 1st AS. Everything in it worked-just needed elbow grease and TLC. But, my better half likes new and very clean when it comes to refrig, toilet, etc. Now, I planned for a new toilet-one a little taller. But, had no plans for the fridge-before I got it completely clean, Mom decided we needed a new one. So, I replaced it. Had a trip planned so I cut a minor (to me at the time-a mistake, i am sure) corner and did not absolutely clean out the entire reefer hole-top to bottom. the main hole, for sure, and as much of the vent as my arms could handle, but not the whole ball of wax. The reefer worked just fine as it was on our first trip-had varying temps outside including one really hot for WA day. Well, I am planning NM and AZ trips this year and a quick read on reefer efficiency produced the idea of helping out the vent chimney effect with a fan. So I got a small fan and proceeded to figger out where to put it. Behind the reefer is too crowded so I decided up in the vent-and you know the rest of the story.
Bottom line: 1) glad I took the vent apart and cleaned it. 2) will continue to clean it on regular mtce 3) put the fan in as insurance. 4) have better (more complete) fan mod planned in the future.
Many threads on here say a fan helps the frig stay cool...
whew, I am sure glad I am a man of few words, otherwise it would've been a book instead of a mere short story.
ol' bill the newbie