Started this in the electrical area, moving to here.

Replaced my control panel with two Ecklers panels.  Neither panel would work correctly as far as the vacuum goes, moving the air flow.  Installed my old panel and the air vacs move correctly.  At a lose here.  I am thinking of trying to  just replacing the electrical guts on the panel.  The reason am going down this road is due to a short on that part of the panel.  Panel works fine, but I feel it is causing a system drain down issue on my car.  Any feedback is wanted.  Have pics if needed.  joe.dewey@yahoo.com.

hi    heater control broken when doing paint  .  I could not find anywear a 1979 contrioller , I was sent  reman but same as you vac control don't work right  .   checking both my 79 unit wit h other unit  almost but not the same. I had to make a few adjustment but got it to work nothing major when you look you well see the problem  may have to use some parts from old unit.sometimes you just have to make work  .  hope  but thank you well get it,note I never did look for a used on. good day  dwa175

I have pretty much come to that also.  I have just the electrical part of the panel coming in today.  Will try just replacing that part on my old panel and hopefully it will work.