Candy Fridge/freezer overheating?

After returning from 2 weeks holiday my Candy fridge/freezer (approx 5 yrs old) which is in a cupboard, is getting very hot behind the door of the small top freezer and the fridge, so hot that the rubber is also hot. The fridge and freezer are both working perfectly and being in the cupboard has never caused a problem. Any ideas what the problem could be? Thanks.
Hannah, July 2014


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