"After discovering the fan was not working in the freezer compartment but the fridge was still running getting cold on the rear wall of the freezer compartment. i removed the ducting the white panel 6 screws from the rear wall of the freezer the 4 screws that hold the fan motor in place to the white panel. i also removed the 2 mounts for the removable central shelf which allowed the panel to fall forward. i then disconnected the earth wire from the back of the white panel on the rhs. i then marked the two power wires for the fan so that i could idenfy which wire went where being careful not to damage the wire mount or the additional insulation when i disconnected them. to dismantel the fan cradle assembly noticed that the treads stripped easily so i enlarged the holes replaced the them with a stainless steel screw nyloc nut. to remove the fan blade i took the advised from another handyman sprayed lubrcant on the shaft. i then removed the lock ring on the front of the blade used a small pair of vice grips to secure the fan motors shaft. being careful not to damage the fan blade i then prised the blade off the shaft. to diagnose the fault i relied on the feed back of other people which proved to be right. assembly just reverse the process. my fridge has been working like a trooper since. a big thanks to all"