An outdoor air conditioning condenser unit mounted on a concrete pad next to a blue-sided residential house at sunset.

AC Maintenance in Sedalia, MO

Air conditioners here run from May through September, so April is the time for a tune-up. Tell us about your system, and a licensed contractor who covers Pettis County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
An outdoor air conditioning condenser unit installed beside the exterior wall of a blue vinyl-sided house at sunset.

Five months of real heat on Sedalia's air conditioners

Your AC runs from May through September here, and on the afternoons that hit 86°F it runs long stretches to keep up. That kind of steady runtime wears on the coil and the refrigerant charge, the two things that actually cool the air. A unit low on refrigerant or running on a dirty coil has to work harder to hit the same temperature, and that strain builds over a summer this long.

Pettis County has also seen 35 hail events and 47 damaging wind events over the past ten years, with hail up to 2.5 inches. The outdoor unit sits exposed to all of that, and a bent fin or a cracked fan blade can go unnoticed until the system starts struggling. A maintenance visit checks the outdoor unit for that kind of damage along with the coil and refrigerant level, so a small problem gets caught early.

5 months
May through September, your air conditioner is on duty
86°F
the average summer afternoon it cools against
35 hail events
in ten years, and hail bends the fins on outdoor coils
47 wind events
in ten years, and wind drives debris into outdoor units
Isometric cutaway illustration of a small home interior with furniture and ducting, showing an indoor air handler connected by lines to an outdoor condenser unit on a pad.
Your air conditioner works hardest from June through August.

NOAA nClimDiv, 1991–2020 normals

An outdoor air conditioning condenser unit positioned on a concrete pad next to a blue-sided house, surrounded by green shrubs and flowering hydrangeas at sunset.

Book your AC tune-up in April, before homes here start needing cooling in May.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

A tune-up checks the refrigerant charge, cleans the coils, tests the capacitor and tightens the electrical connections.

What does AC maintenance include?
A technician cleans the condenser coil, checks the refrigerant charge, and tests the capacitor and contactor in the outdoor unit. Inside, they check the evaporator coil and the condensate drain, since a clogged drain can back up and cause water damage. They also check that the thermostat is calling for cooling correctly and check airflow through the ducts. A technician working outdoors will also check the cabinet and fins for dents or debris that can restrict airflow.
How often does an air conditioner need maintenance?
Once a year, before the season it works hardest. Here that means getting it checked before May, so it is ready for the run through September when afternoons average 86 degrees. A yearly check catches a weak capacitor or a low refrigerant charge before it causes a breakdown on a hot afternoon.
Is AC maintenance worth it?
Yes, because it catches small problems while they are still small. A dirty coil or a failing capacitor makes the system work harder and wears out parts faster, and both show up in a routine check. Sedalia has had 35 hail events and 47 damaging wind events over the past ten years, and a yearly check is a chance for a technician to look over the outdoor unit for dents or debris from storms like these.