I have an integrated fridge/freezer, Diplomat, from Howdens with similar problem. First came the 'H' sign on the fridge and then the freezer broke down too. Howdens said they weren't responsible for repairs as it was more than one year old (2 years). I had an engineer come out who said the motor had gone and as it would cost more than £200 for a new one I should buy a new fridge/freezer. I expected it to last more than 2 years!
Dale Greig, February 2010