My Coolzone fridge freezer CZ51141 has suddenly stopped cooling/freezing. First I heard a gurgling noise like the sound of running water and ice began to appear on the back of the fridge section. Eventually the unit stopped cooling altogether. I have cleaned the unit thoroughly and the drain appears to be clear (I think). Right now I can hear the motor running as normal but there is still no cooling/freezing. The machine is only just over three years old and has only ever had very light usage. PLEASE⦠can anyone help? Is the unit repairable, if so, is it a possible DIY job? I understand that Coolzone are no longer in business.