Thank you for your responses... My fridge was never empty so I don't think that was the problem. It is more likely to be the pcb. I did have a week or so of it working normally after xmas but it now looks like its back to freezing things.
www.espares.co.uk can provide the part but they will not give you a price until you have provided them with all the specifics of your fridge freezer.
Tommy would this be a part that I could fit or would I have to get an electrician in?
Gill Williams
January 2008