You get your oil changed on your car, right? Unlike your car, however, your AC system probably doesn't get much care. You may want to consider a seasonal tune-up/service by an HVAC technician, but if you don't want to have a pro come out, there are a few things you can do yourself:
- Vacuum or blow out any dust, leaves, or debris that has accumulated in the exterior condenser unit over the winter and spring.
- Remove the condenser cover/grill and wash off the aluminum fins with a garden hose, being careful not to bend or damage the thin metal. If some of the fins are bent, you can carefully straighten the fins with a fin comb.
- Check the lines running into the house to make sure they are in good shape, and check the condenser unit to see if it's level and steady.
- Look at the condensation drain line inside the house by the furnace to make sure it is draining correctly and not plugged up or damaged.