[scottz]

Originally Posted by Wmass camper

Does anyone know what the "freeze" reading is on our MicroAir Tstat?
Can't seem to find that notification in the manual anywhere. Pix attached.

The number below "freeze" is what your Dometic freeze sensor is reading. The explanation you got from Micro Air is correct. Dometic single zone units have a "freeze up" problem and lock out for quite awhile until the freeze sensor warms up enough. If your other unit is running and pumping cold air into the common ducts, the freeze sensor may never warm enough to reset the lock out. If your unit goes into lock out, the Micro Air will run the fan on high to rapidly (usually takes less than a minute) warm the freeze sensor so the unit will return to normal ops.

I was a test bed with MicroAir for a couple months last summer to get this software fix working. I have had this problem since I bought the Montana new; Dometic has looked at the units several times and is unable to solve the problem even though they acknowledge it exists. The Micro Air T-stats are a life saver and the tech support is terrific. After fighting this for four years, my units are working well.