mouldy man wrote:
I now its a stupid question but where is this memory card, and how
easy is it to get it out and give it a wiggle ????

I tend to avoid appliances with computers in them, since they are
too complicated for me to fix or or the parts are expensive.

Another possibility is that you have a blocked defrost drain
line. See here for a way of fixing that:
http://www.refrigeration-engineer.co...ead.php?t=1772

I know its probably not DIY, but the fridge compartment is not
cooling. Thermostat has no effect.