The auxiliary pump tracing shows no ground! Is the ground supplied by the control box or where?

Directly wired the auxiliary pump jumps to life and controller is supplying power.

I just installed a rebuilt climate control unit and now the unit clicks every minute and turns off the fan for a second and than turns it back on for 30 seconds.

I swear I can feel just the smallest amount of heat, but it is very slight.

Also, the a/c stopped working. I have not tried to readjust the feedback potentiometer yet, but a/c worked with old system fine.

W220 190E 1990 2.6 I refer to rebuilt climate control unit notes at:

http://www.programainc.com/files/10985.pdf