Bosch larder fridge stopped cooling

[Paintpot]

Hi
i have a bosch larder fridge (KSR3421GB) which has just stopped cooling. the fan is still working, the light still works.
Found it like this early last evening, then my wife tells me it was working in the early hours of the morning, but not working when we woke this morning....any ideas please
Ian

[tonto33]

could be ntc, or pcb

[Paintpot]

Thanks tonto.
Anything that may sway the diagnosis one way or the other? ntc is obviously cheaper......

[sedgy]

hi paintpot
did your wife de-frost the fridge WITH A KNIFE? by any chance
sedgy