If you are painting or sanding keep your system off if you can. Do your cutting out side. Change your filter more often.Sheet rock dust will turn back into mud if it gets wet. Your coil will turn into a solid piece of sheet rock mud and need repair. Keep your vents closed in the area you are working in. Use plastic sheets to seal off the area you are working in. Sweep or vacuum every day keep the area as dust free as possible. Dust from paint will kill your air conditioning system. If you are re doing your roof don't get shingles nails or any of the sand that comes off the roof near your air conditioner. Do not stack tools or materials on your a/c. Do not cover your a/c. If you are building a deck don't hide the a/c under it. Air conditioners need to get air to cool themselves off. Need air conditioner repair near Mcdonough Aaac service is a local Henry county heating & air contractor. Aaac Service Heating and air 3027 Keeneland blvd Mcdonough, GA. 30252 77...