Why doesn't my DeLonghi Air Conditioner "PAC N90 Eco Silent" drop my room temperature below 23 degrees Celsius (temperature displayed on the appliance monitor), even when I program it to cool below
De'Longhi Pinguino PACN90 Eco | Portable Air Conditioner | 85m³, 9,800 BTU, A Energy Efficiency : Amazon.co.uk: Home & Kitchen