What Everyone Needs To Know About HVAC Systems

What You Need To Do If Your AC Stops Blowing Out Cold Air

by Amelia Martin

What would you do if your air conditioner suddenly stopped pushing cold air into your home? Sure, you can call a local air conditioner repair company to have a technician resolve the problem. But, before you do that, you might want to try cleaning your AC unit. The part of your air conditioner that sits outside your home is called the condenser. Over time, it collects dust, debris, and dirt. If it gets too dirty, your air conditioner won't blow cold air into your home. So, before calling the closest air conditioner repair company, use these directions to clean your AC unit.

To clean your air conditioner, you'll need:

  • Screwdriver
  • Handheld broom
  • Shop vac
  • Trash bag
  • Duct tape
  • Hose and spray nozzle


  1. Cut the electricity that's running to your air conditioning unit by completely shutting down the AC unit or turning the power off at the breaker.
  2. Remove the top panel and side grilles from your air conditioner unit using a screwdriver. On some AC models, the fan is attached to the top or side panels. So, you need to remove each panel carefully. You don't want to damage the fan or any of the wiring running to the fan.
  3. Go over the condenser coils and the panels in front of them with a handheld broom to remove excess dust, debris, and dirt.
  4. Use a shop vac to vacuum any remaining debris, dust, or dirt from the bottom of your AC unit and around its condenser coils.
  5. Place a trash bag over the top of your air conditioner's motor and wiring so that they are completely covered. Then, temporarily secure the trash bags to the unit using duct tape.
  6. Attach a spray nozzle to your garden hose, the hose to the spigot, and turn the water on.
  7. Adjust the spray nozzle on your garden hose so that it sprays water out gently — you don't want the hose to spray a high-pressure stream of water because the pressure could damage the metal plate that protects the AC's condenser coils. If the protective plate gets bent, you'll need to contact a local air conditioner repair company to have it replaced.
  8. Spray the condenser coils and the protective plate with the hose until it's completely clean. Then, allow them to dry.
  9. Reattach the air conditioner's top panel and side grilles.
  10. Power up your air conditioner unit and reset your thermostat.

If your air conditioner stopped blowing out cold air because it was dirty, cold air should be pushed into your home after the unit is clean and the thermostat is reset. If you've cleaned your unit, and it's still not producing cold air, you should consider contacting an air conditioner repair company, such as Jackson Heating & Cooling.