...across the back of the coils, that is.
We haven't had much of a chance to camp in the Airstream since I started this thread last fall. So, I'm just getting around to fixing the problem, here goes.
In post 22 of this thread, you'll see a couple of threads here on the forum about airflow. In one of those threads, somebody mentioned a contraption by Snyder RV Refrigeration Snyders RV Refrigeration - Home
. Cost is about $85 delivered.
The problem at hand is that the freezer will cool down just fine, but the fridge never or rarely gets very cold. The reason for this is that the coils at the top, back of the fridge can't cool down properly. These coils are the part of the system that work in the fridge portion (NOT the freezer). Hot air builds up behind the unit preventing the coils from cooling and keeping them very warm.
The system I bought from Snyder is incredibly simple and quite ingenious. In the first pic above, you'll see a piece of gutter downspout, like the kind you might have on your house. At the bottom of the spout is a small computer "muffin" fan. All this thing does is force air up and thru the coils to remove the heat from those coils.
The last picture shows a heat sensor attached to the heating tube coming from the heating chamber below. It causes the fan to kick on after the system reaches a certain threshold temp (don't know what that is, but it kicked on about a half hour after I cranked up the fridge). It will, of course, shut down the fan when the heating element shuts down conserving energy and hopefully extending the life of the fan.