Clean the indoor unit filters and wash the outdoor unit condenser with a hose and see if that works. Then after that has been done, set the AC unit on cooling at its minimum temp and then go to the outside unit and after a couple of minutes you'll see the thick pipe ice up. When you see that wait 20 more seconds then tip you finger on your tongue and press it against the pipe +-5 cm away from the valve its suppose to stick.
If not you will need to get professionals to service it or contact me and I can guide you step by step.
Answers & Comments
Halo
Clean the indoor unit filters and wash the outdoor unit condenser with a hose and see if that works.
Then after that has been done, set the AC unit on cooling at its minimum temp and then go to the outside unit and after a couple of minutes you'll see the thick pipe ice up.
When you see that wait 20 more seconds then tip you finger on your tongue and press it against the pipe +-5 cm away from the valve its suppose to stick.
If not you will need to get professionals to service it or contact me and I can guide you step by step.
Regards