That's good info, Mudfrog. It might just be a condition that will only happen up here at about 6000 (+ or -) feet above sea level.
I did get an email from Airxcel (which makes the Coleman unit). He asked for a temperature differential between exhaust and return. I had to run to Home Depot for a cheap laser temperature tool. Found the return to be 82 (temperature in the trailer) and outgoing to be at 65 on that day. Right now it's at 77 and 64.
I moved the freeze sensor nearer to the center where I notice it begins to freeze up.
Froze over on me just a bit ago (which reminded me to update the post). Froze all around the freeze sensor.
I went ahead and bought a roll of duct tape (the metal stuff) and taped the hell out of the return side (cleanly of course) where it looks like they just wadded up tape and shoved it into the corners. It looks much cleaner in there with all of the power and thermostat wires nicely taped down. Also triple checked the baffle and it's nicely installed.
I also bought a can of "coil cleaner" which smells just like windex and sprayed it on the evaporator (says it's good for that) and let it sit for 20 minutes. Just in case it was a little dirty, didn't see any harm in that... Now it smells like windex in the trailer - it's almost like I cleaned the place!
Still waiting on word from Coleman.
I will be installing the other Dometic Brisk II unit this week in the front bedroom which should take some of the stress off of this unit. It's a nearly 35' trailer being cooled by one AC.
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