hello all i like some help i was cleaning the base board around my frig the plastic cover on the bottom came off so i looked under it wow ive had this frig 3 years now the dust in the coils under there lots of it. im wondering how you clean it under there im thinking opening the little door behind the frig losseing that carboard cover back there so the dust will go out the door maybe. blow it out with compressed air or vacuum cleaner.i have a big horn 2019 with Frigidaire frig.how do you clean under there.not haveing any trouble with it being cold thanks