In these models and experienced that have a leak of internal freon the question is how to solve the problem ...

Hi. I have attached the service manual on this unit for you. I have seen many sealed system issues with theses units. It is either a faulty compressor or a leak in the system. From some research I have done it appears the issue is the compressor. I have never gone any further into diagnosing the issue because everyone I have ran into ends up having a warranty on the sealed system from the manufacturer. To find out what the issue is you would need to tap the sealed system to see what your refrigerant pressures are. This will determine weather it is a leak or a faulty compressor. If a leak is found you would need to install a U.V. filter drier and recharge the unit. Then when it leaks back down again come back and find out where the dye is with a black light to find your leak.