Ok. Thank you.
If the compressor is running but the unit is not cooling you have a refrigerant issue.
When a unit is left for that long without being operated the seals tend to dry out. That allows the refrigerant to leak out and you have what you have now.
There is a tiny bit of oil in th eunits that is circulated with the gas that keeps the seals moist. If the unit is not operated for a long period of time the oil is not there to do its job.
You will need to contact a service that is licensed to handle refrigerants.
I am sorry but this is not a DIY repair.
Thank you for trusting me with your problems.
The Home Smithy
Please select a POSITIVE RATING (Ok Service or better) and a bonus is appreciated. This
is how your professional receives credit for their time. If for any reason the rating box is not visible, or you are
unable to enter a rating, please let your professional know.
This is ment to be a running dialogue, and for this reason it is very IMPORTANT that you reply using the
REPLY TO EXPERT tab if more information is needed at any time
Please remember to ONLY rate an answer when you are 100% satisfied. If you feel the need to rate Poor or Bad
Service, please STOP and reply to your professional via the REPLY TO EXERT tab with the issue you have. They will be happy to continue further and do everything they can to provide you with the service you seek.