Re: Hygena APP 6402 Freezer
I’m afraid it may be terminal or pretty costly. It sounds like the permanent running on fast freeze has damaged the compressor 🙁
It may also have been that it wasn’t working correctly for some time and the previous owners put it on fast freeze to try and make it get down to temperature.
Either way it will need confirming by a refrigeration engineer who can check for gas loss, compressor failure etc.
Try the repairs@ link below 🙂
Dave.