AC Repair in Arnold, MO
Air conditioners here run from May through September. If yours quits, tell us what it's doing and a licensed contractor who covers Jefferson County will get in touch.
Tell us about the job
It takes about a minute.
Five months of Arnold summers wear on an AC fast
Your air conditioner works hard from May through September here, with afternoons averaging 87°F. That means the compressor and fan run long hours day after day, all season, with little break between cycles.
Jefferson County has also seen 49 hail events and 53 damaging wind events over the past ten years, with hail up to 3 inches. Hail that size dents the thin fins on your outdoor unit's coil, and wind can knock the unit out of level or throw debris into it. Either one shows up as an AC that runs but does not cool the way it used to.
- 5 months
- May through September, your air conditioner is on duty
- 87°F
- the average summer afternoon it cools against
- 49 hail events
- in ten years, and hail bends the fins on outdoor coils
- 53 wind events
- in ten years, and wind drives debris into outdoor units
NOAA nClimDiv, 1991–2020 normals
A new air conditioner would save little on running costs in Jefferson County, so the repair decision comes down to the unit's condition.
Estimates for a typical Jefferson County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Missouri fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when a part like a capacitor or contactor has failed.
Replacement makes sense when the compressor has failed or the system uses R-22 refrigerant, which is no longer made.
- Why is my AC not blowing cold air?
- Most often the filter is clogged and starving the system of airflow, or the refrigerant level is low from a leak somewhere in the line. A dirty outdoor coil can cause the same thing, especially with the hail and wind this area sees, since bent fins block airflow across the coil. If the filter looks clean and the air is just weak or warm, a contractor needs to check refrigerant levels and the coil itself.
- Why is my AC leaking water?
- The drain line that carries condensation away from your indoor unit is clogged, or the drain pan underneath it has rusted through. Algae and dirt build up in that line over time and block it, so the water backs up and drips out instead of draining outside. A frozen coil that's now thawing will also puddle water, so check whether the air coming from your vents was weak or warm before the leak started.
- Why won't my AC turn on?
- Start with the thermostat batteries and the breaker before anything else, since both are common causes and both are easy to check. If the breaker keeps tripping when you reset it, the compressor or a wire is likely shorting out and it needs a contractor to look at it. A capacitor that's gone bad is another common reason the unit won't start, and it's not something to test yourself since it holds a charge even when the power is off.