I have been using the same model as you for the past 3 to 4 months, cooling is fine Alhamdullilah. I use the AC for 18 hours. The only problem that I have faced till now is that it's horizontal movement grill has stopped working and the technician said that plastic parts are not included in the warranty.
Make sure your voltages are stable and if you are using a stabilizer, remove it and plug into the outlet directly.
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