Just bought a 2 year old Hotpoint fridge freezer FF 92P. Waited 24 hours before switching it on and then waited for it to reach the correct temperature. Fridge was reading +3 degrees and freezer was reading -18 degrees. The following morning noticed EE in the display box. Everything still seems cold but wondered what this means? Also noticed the night before it was a bit noisy but this morning it is quiet. Can anyone help?