Just wondered if any fridge engineers can help.
I have a 8x4 walk in chiller with a monoblock. I have put some lambs through today and put them in on the rail. 1st two and the chiller was running fine and down to 3 degrees. I went back later with two more and whilst cleaning down noticed that the temperature was not dropping as it should. The fans etc sound fine, the inside fans are running, but the evaporator (?) inside was icing from the top down. The outside rad air flow was not warm as usual.
Any pointers, I am not looking to repair myself, just don't want an engineer bending me over!
Any help gratefully received