Air conditioning repair · statewide
Compiled by
Jaylan Jones
· compiled from NOAA, EPA and Oklahoma state sources
Air conditioning repair in Oklahoma
Oklahoma cooling seasons run long and hard. When a system quits in August it is rarely mysterious — it is usually one of about eight things, and most of them are diagnosable in under an hour.
Answered 24/7 · statewide
100°F+
Summer design load
12–15 yr
Typical service life here
24–48 hr
How fast a frozen coil becomes a compressor problem
What usually fails
Capacitor
The single most common failure. A $15 part. The compressor tries to start, hums, and trips. Cheap to fix and often misdiagnosed as a dead compressor.
Contactor
Pitted contacts stop the outdoor unit energising. Also inexpensive.
Low refrigerant
Never normal. Refrigerant is a closed loop — if it is low, there is a leak, and adding more without finding the leak is throwing money into the air.
Frozen evaporator coil
Almost always airflow, not refrigerant. A dirty filter, a blocked return or collapsed ducting starves the coil, it ices over, and cooling stops. Turn the system off and let it thaw before anyone opens it.
Condenser fan motor
The outdoor fan stops, head pressure climbs, the compressor overheats and trips on thermal overload. Left alone it kills the compressor.
Blocked condensate drain
Water backs up, the float switch cuts the system, and it looks like an electrical fault.
Compressor
The expensive one. Usually the consequence of one of the failures above going unaddressed, not a spontaneous event.
Control board or thermostat
Increasingly common on communicating systems, where a comms fault presents as no cooling with nothing mechanically wrong.
Try these before you call
Check the filter — a clogged filter causes more service calls than any single component. Check the breaker, including the outdoor disconnect. Check the thermostat is on COOL and set below room temperature. Check the outdoor unit is running and the fan is turning. If the coil is iced, switch the system to FAN ONLY and let it thaw for a few hours.
Statewide, 24 hours a day
Common questions
Why is my AC running but not cooling?
The most common causes are a frozen evaporator coil from restricted airflow, low refrigerant from a leak, or a failed outdoor fan motor. If the indoor fan runs but the outdoor unit is silent, suspect the capacitor or contactor.
Should I repair or replace?
Rough rule: if the system is over 12 years old and the repair exceeds about a third of replacement cost, replacement usually wins — especially in Oklahoma, where operating hours are high and efficiency gains pay back faster. Under 8 years, repair almost always wins.
How much does AC repair cost?
A capacitor or contactor is typically low hundreds including the call. A fan motor or control board runs mid hundreds to low four figures. A compressor or coil replacement is four figures and is the point at which replacing the system deserves a serious look.
Is it normal to add refrigerant every year?
No. It is a closed system. Annual topping up means an unrepaired leak, and you are paying for refrigerant that ends up in the atmosphere.
System down in Oklahoma?
Oklahoma summers run past 100°F and ice storms take the power out for days.
Neither is a good time to wait on a callback.