EasyCold display fridge info

[ozzie35]

Hi guys
Thanks for all input. This is display fridge in my local shop. Condenser feeds two indoor unit both works on 2 degree and separate elliwell controller. One of them has dairy and other has alcohol (love it keep it cold for my next trip). Up to today only dairy one was working and I was tried to find fault at condenser. Today I turn both unit on and same issue. That’s why I change the delay timer as well as contacter. Now alcohol fridge works fine after defrost however diary stuck on defrost again. That’s means, controller is faulty. I now need to change controller however I pressume there are settings I need to input for Elliwell. Can anyone confirm I’m on right track?