Our dash a/c (Evans) stopped getting cold. It all works, blows air and puts it in the right place, gets warm when I ask for heat, just don't get cold on a/c. I verified that the water valve moves p...
I have an Evans in a gas MH, so I don't know if it is set up the same way, but there is a switch either binary or trinity mine was a trinary switch and was leaking where the wires attach to the top of the switch. Once I changed the switch I was able to add 134 to the system and it has worked well for 5 years. You have to find the leak first before adding more 134. The switch should have 2 or 3 wires going to it.