Hi everybody

I m working on a vector 1800 single temp

After diagnosing with an empty box and 40 degree celcuis of ambiant temp

I noticed that the csmv closes by the micro after starting to 4% or less until the suction line becomes frosted for about 10minutes then open to normal position and the unit operate correctly

Please i want to know what ‘s the factors that let the microprocessor open or close the csmv and the eletronic expantion valve and if the presence of non condensable will clearly affect the operation of vector unit