BEKO LC120 Larder fridge, baffling behaviour

Hi,
I have a BEKO LC120 fridge which has got me puzzled. The temperature inside the fridge is actually hotter than ambient. I checked power on and thermostat set to 7 the highest it will go. I dragged the fridge out to check to see what I would find. The compressor is very hot. I turned the fridge off and left it for the compressor to cool down. Once it was cool, I turned the fridge on again, sound of a relay buzzing briefly then motor ran for a couple of seconds and stopped. It repeated this cycle 4 times in as many minutes, the compressor had got very hot again. Decided to turn it off and contact you. The compressor housing has a sticker on it which says it is fitted with a thermal cut out. Is my fridge knackered and in need of replacement, I have a suspicion that the motor is just rapidly overheating and the thermal cut off operating, if this is the case is it time for a new fridge, or is there some other possible explanation that won’t be so financially painful.