Hotpoint future frost free FZA34?

I returned from holiday to find my freezer had defrosted and all the contents had to be thrown. The "high temp" light is lit, i decided to switch the freezer off over night however after switching it back on this morning the light is still glowing. I've changed the fuse but the light is still on. The freezers making a sound as if its starting up but then after a few secondz it sort of stops then repeats this over and over.... any idea's anyone??