better have the air con clean annually yun sira ang compressor or cooling coil can be pre determined pag check the pressure of your freon yun cooling coil numinipis sa katagalan ng gamit there are instance that ngkataon lang malalaman butas yun coil pag nalinisan but parating na yun dun matter of time lang and if you maintain one particular product kahit di air con mas tumatagal siya even out body needs maitainance