Something stopping cold air from circulation we came across the same problem until we got hold an engineer from www.agsrefrigeration.co.uk. who service the london and surrey area they attended and rectified fault no problems since.
Sue
December 2012
if the compressor runs but not cooling it could well be a gas issue which is expensive to repair even if possible
CK
November 2012
Automatic Answer
While you wait for answers, we may have found some information which could help you.