<<The a/c compressor engages and disengages depending upon what button is pressed and what temp is selected. I checked this and removed the jumper wire so as not to mess anything up. I figure if MB has this switch in for some safety reason I didn't want the compressor engaged if MB wanted it DISengaged.
That is the switch that we told you to jumper ..it is low freon compressor saftey ..
If compressor clutch came on, the sw is bad or the freon level is low..
I suspect low freon..
They will know that right away..