Hi guys, I'm after a bit of advice please.., I have a customer with a 10ft sq 7ft tall coldroom at +3C, the unit cools and defrosts perfectly.

The problem I have is that the main side cover keeps getting forced off by icebuild up on tev and capillary tubes. I went to see the unit today to melt the ice and refit the cover but I was just wondering for possible causes/fixes...?