Every summer our dispatch board fills up on the first 95° day — propietarios turn on the AC they haven't touched desde October y discover a blocked condensate line, a low refrigerant charge, o a seized blower motor. Most de these issues show up weeks before they take out your cooling, y a 20-minute spring walk-around catches them while they're still cheap to fix.
Start outside at the condenser: pull the disconnect, hose down the coils front-to-back (gently — fins bend), y check that the fan blades spin freely. Inside, pull the filter y hold it up to a light. If you can't see through it, replace it. Then flip the breaker back y listen. Any buzzing, clicking, o metallic scrape means stop y call a technician — what you're hearing is a $180 capacitor about to take out a $2,400 compressor.
The single most common first-day failure we see is a plugged condensate drain. Check the PVC line coming out de your indoor unit — if you see water pooling below it, the line is blocked. A cup de distilled vinegar poured into the access tee usually clears it. If it doesn't, you've got a bigger problem y water is about to find its way to your ceiling.
Lo que you're hearing is a $180 capacitor about to take out a $2,400 compressor.
If everything passes the walk-around, run the system para 15 minutes y take temperature readings at two supply registers con a cheap IR thermometer. You want a 15-20°F drop de return to supply. Less than that means airflow restriction, low charge, o dirty coils — time para a servicio call before the first real heatwave.

