We carry R-410A and R-22 service equipment so we're not turning away older systems.
Straightforward flat-rate pricing, quoted after diagnosis.
If you're dealing with warm air blowing from the vents, ice forming on the copper line, or a condenser fan that's stopped spinning outside, you already know a system that's technically running but not actually cooling the house is one of the most misdiagnosed HVAC complaints there is.

AAA Pro HVAC built its AC repair process around one idea: diagnose first, quote honestly, fix it right.
Every truck across Mokelumne Hill, CA carries the tools and common parts specific to AC repair, so most calls finish in a single visit.

Every tech carries EPA Section 608 certification, required for legally handling refrigerant.
We route by real-time technician location, not a fixed territory list.
Diagnostic first, quote second, work third — that order never changes.
We check superheat and subcooling against manufacturer spec before touching the refrigerant charge.
Every job starts with a real diagnosis, not a guess — here's the full scope of what our AC repair technicians handle across Mokelumne Hill, CA.
Repeated low-charge calls on the same system usually mean an unrepaired leak from a prior visit elsewhere. Techs handling refrigerant charge & leak repair carry the specific parts and tools this job calls for, not a generic kit.
We test motor amperage against rated draw before replacing. This is one of the most requested AC repair calls we get across Mokelumne Hill, CA.
We check for coil frost, which usually points to airflow or charge issues upstream. Techs handling evaporator coil cleaning & repair carry the specific parts and tools this job calls for, not a generic kit.
Hard-starting, humming-but-not-spinning, or tripped breaker symptoms get tested with a start capacitor check before any compressor is condemned. This is one of the most requested AC repair calls we get across Mokelumne Hill, CA.
We verify the low-voltage circuit before assuming the outdoor unit is at fault. Techs handling thermostat calibration & wiring carry the specific parts and tools this job calls for, not a generic kit.
Ductless systems fail differently than central air — we service indoor head units, line sets, and outdoor condensers. Techs handling ductless mini-split diagnostics carry the specific parts and tools this job calls for, not a generic kit.

Tell us whether the air is warm, the unit is icing, or it's not running at all — that detail changes what parts ride along.
Techs arrive with manifold gauges and common capacitor/contactor stock already loaded.
Superheat, subcounting, and airflow readings get taken before any refrigerant is added.
Workmanship is backed in writing on your invoice.

Turned out to be a slow leak at the schrader valve — they found it with dye, fixed it, and recharged properly.
Outdoor unit had ice forming on the copper line which I'd never seen before.
They caught it before the compressor overheated and swapped the fan motor same visit.
Mini-split in the sunroom was throwing a code I couldn't find online.

Usually low refrigerant charge from an undetected leak, a dirty evaporator coil, or restricted airflow from a clogged filter.
Turn the system off, set the fan to run, and call — running a frozen coil makes the underlying problem worse.
Every system has a manufacturer-specified charge amount — we don't top off blind, we charge to spec using superheat/subcooling readings.
We carry recovery equipment rated for legacy refrigerants.
Mini-splits have their own fault-code language, and our techs are trained on the major brands.
We prioritize no-cool calls with vulnerable occupants when scheduling.

Whether you're in the heart of Mokelumne Hill or one of the surrounding communities, dispatch routes the closest available technician.
☎ Call +1-844-611-2875 for Mokelumne Hill Service