bosch upright fridge/freezer not working?

Recently switched off the power on my upright integrated bosch fridge freezer, to defrost the freezer. When I restored power appliance will no longer work. Compressor will not start and neither fridge or freezer sections operate. The unit is approx 6 yrs old and been looked after. Do not know model number as I cannot find handbook and fridge unit does not have any markings on it. Unit is controlled by an electronic temp control with temp range of 2 to 8 degrees. This unit has two control buttons one to the right hand side, which allows you to select temp on the sliding scale and the second, a orange led button to the left hand side marked with the word "super"!

Any clues I have tried leaving the appliance switched off for a number of hours hoping it would reset but no good. When you switch it back on the compressor tries to kick in but only momentarily then nothing!

Gerry M.
December 2010