Quote Originally Posted by Sandro Baptista View Post
See what is different on the ladder PLC control defrost #3 evap from the other evaporators and what are the interacting with the UNISAB III. Sure you already have done that...

Keep us informed. I'm curious.
all evap control setpoints are the same,,whatever was wrong has now righted itself !! It is working normally once again and we never did anything...still would like to know what happened to cause in the first place.