Hello, Can you inspect the compressor at the back if it is running ? Vibrating? hot to touch? ( Be careful, it could be too hot to handle )
Its a built in appliance, i can't get to the back
Oh. We need to confirm if the compressor is running or not. That would help me trouble shoot your unit. If it is running, then it could be a refrigerant gas problem. If it is not running, then it could be something electrical or the thermostat.
Can you put your ear on the door and listen carefully if a motor would run after you switch the unit on? If there is a fan inside the unit, you should be able to distinguished if what you hear is the fan motor or a compressor running. Try to observe if the indoor fan would stop as you open the door. If it does stop, then you can leave the door open so that when you plug the unit in, the fan motor would not stop and only the compressor would run. Then you can verify if the compressor at the back is running.
Sorry for the typo error. "when you plug the unit in, the fan motor would not stop and only the compressor would run." the fan motor would stop and only the compressor would run.
The compressor is running
Ok. Thank you for that info. If the compressor was verified that it is running and yet there is no cooling inside the freezer, then I am afraid this is a refrigerant gas problem.
The refrigerant was lost due to a leak some where in the system. The refrigerant is the cooling medium that is why with out it, even though the compressor is running, you would have no cooling inside the freezer.
And this is not a DIY. You would need a licensed tech to do the job since refrigerants are controlled substance.
I am sorry if you can not do any thing to make it working again.