How do I get my AC ready for a Louisiana summer?

The short answer

In spring, before the first hot week: change the air filter, clear plants and debris away from the outdoor unit, flush the condensate drain line, and book a tune-up. In humid places like south Louisiana, the drain line matters most, because a clog leaks water inside.

Do it yourself

• Put in a new air filter, and check it monthly in summer.
• Clear about two feet around the outdoor unit and gently rinse the fins.
• Pour a cup of white vinegar down the condensate line opening to slow algae.
• Test the AC on a mild day, so a problem shows up before the heat wave.

Have a pro do it

• Check refrigerant, electrical parts and the capacitor.
• Clean the indoor coil if it's dirty.
• Look at the age of the system and tell you honestly how much life it has left.

Questions people ask

When should I get an AC tune-up?

In spring, before HVAC companies get busy with summer breakdowns.

How often should I change my AC filter in summer?

Check it every month. Change it when it looks gray or you can't see light through it.

Read more

• AC running but not cooling
• AC leaking water
• AC repair cost