snap:3557 saloon warm. ~~~~~ 3557- A/c 2-1 Checked & Confirmed having coolant pressure fault. Unit having low freon. Charge to within criteria & Test run. Monitor unit operating normally & able to Cut In/out. Saloon temperature measure at 24*C. Found valve core slightly leak at low side charging point-Tighten & Monitor-All ok. HP/LP within criteria.   Asad / Fazli / Bok Hai / Ibrahim / Mani. 19.07.2024.