By mid-July, Richmond air carries enough moisture that stepping outside feels like walking into a warm towel. Dew points regularly climb into the upper 60s and low 70s, and AC systems don’t just cool that air. They have to wring it out before it ever reaches your living room. That double burden is why a pre-season inspection isn’t just a nice-to-have. It’s the one action that separates a system that handles peak summer with room to spare from one that quits during the first heat wave of the year.
We respond 24/7 and offer same-day service when it’s available, but we’d much rather find a failing capacitor or a slow condensate drain line in May than at 9 PM on a 98-degree Tuesday in August. An inspection gives you that lead time. Here’s what the process actually looks like, from the moment a technician arrives to what you walk away with at the end.
What an AC Inspection Is (and What It Isn’t)
An AC inspection is a diagnostic evaluation, a structured assessment of your system’s condition, safety, and efficiency. It isn’t a repair visit, and it’s not automatically the same thing as a tune-up. A tune-up involves hands-on service work: cleaning coils, lubricating moving parts, flushing drain lines. An inspection is about identifying what needs to happen, not necessarily doing it on the spot.
Many HVAC companies, including ours, combine diagnostic and service steps into a single visit. But before you book, confirm what’s included so you know whether you’re getting an assessment, a service, or both. A thorough visit on a single system typically takes one to one and a half hours. If a technician wraps up in under 30 minutes, key testing steps (refrigerant pressure checks, electrical measurements, airflow testing) were almost certainly skipped.
How to Prepare Before the Technician Arrives
A little preparation helps the technician move efficiently and gives them the context to focus on the right things.
- Clear access points: Make sure the indoor air handler, the outdoor condenser unit, and all supply and return vents are accessible before the appointment.
- Log any symptoms: Rooms that run warm, unusual sounds, musty odors, or a recent jump in energy bills all tell the technician where to look first.
- Know your system basics: The system’s age and the last time filters were changed help the technician calibrate what to expect and frame any recommendations accurately.
What the Technician Does, Step by Step
The visit isn’t a quick visual scan. There’s a sequence, and understanding it helps you recognize whether the inspection is thorough or rushed.
System Startup & Airflow Testing
The inspection typically opens with a short conversation about how the system has been behaving, then moves into a thermostat calibration check and a run cycle. During that cycle, the technician measures the temperature differential between supply air (cold air leaving the vents) and return air (warm air entering the system). A healthy split is usually between 16 and 22 degrees Fahrenheit. A narrower gap often signals low refrigerant charge, a dirty evaporator coil, or restricted airflow. All of these issues matter more in Richmond’s humidity because a system that isn’t cooling efficiently can’t dehumidify effectively either.
Electrical Component Checks
Capacitors, contactors, wiring connections, and voltage and amp draws get inspected next. Capacitors are the components that give the compressor and fan motors the jolt they need to start. A weakening capacitor is one of the most common causes of no-cool calls in summer. The technician checks actual amp draws against the rated values on the motor nameplate, because a motor pulling more current than it should is often weeks away from failure.
Refrigerant Pressure & Coil Condition
A refrigerant charge check involves attaching gauges to the system’s service ports and reading pressures against the manufacturer’s specifications for the outdoor temperature that day. Low pressure can indicate a leak; high pressure can point to a restriction or an overcharge. Both affect efficiency and accelerate compressor wear. The evaporator coil (the indoor coil that absorbs heat and pulls moisture from the air) gets inspected for dirt buildup and signs of frost, and the condenser coils outside are checked for debris and airflow restriction.
Condensate Drain Line & Drain Pan
Because Richmond has a humid subtropical climate, your AC system runs as a dehumidifier for months at a stretch, pulling large volumes of condensate out of the air and routing it through the drain line. A clogged line backs up into the drain pan, which can overflow and cause water damage to ceilings, walls, or flooring. Many systems also have a float switch that shuts the unit down when the pan fills, which means a clogged line can trigger a no-cool situation with no mechanical failure at all. The technician checks the drain pan for standing water, inspects the line for blockage, and may flush or treat it depending on what’s included in your service.
Blower Motor & Mechanical Components
The blower motor moves conditioned air through your home’s ductwork. The technician checks its amp draw, looks at the wheel for dirt buildup that throws it out of balance, and verifies that the condenser fan blade outside is intact and spinning freely. Some inspections include a static pressure test, a measurement of the resistance the blower is working against inside the duct system, which can reveal undersized ductwork, excessive restrictions, or leaks that are costing you efficiency.
What You Receive at the End of the Visit
A thorough inspection ends with a written diagnostic report covering every component checked, its current condition, and any recommended repairs or adjustments. A good technician organizes findings into what needs attention now versus what to monitor through the season, so you can make an informed decision without feeling pushed into a same-day repair you weren’t expecting.
That written record matters beyond peace of mind. Many manufacturer warranties require documented annual maintenance as a condition of coverage. If a compressor fails at year seven of a 10-year warranty and there’s no maintenance record on file, the manufacturer may deny the claim. Virginia DPOR (the Department of Professional and Occupational Regulation) maintains an online license lookup where you can verify any HVAC contractor’s license before booking, a step worth taking before you let anyone connect gauges to your system.
Why Timing & Frequency Matter in Richmond
Scheduling in spring (April or early May) builds in the lead time that matters most. If the inspection turns up a part that needs to be ordered, a spring appointment gives us weeks to source it and schedule a follow-up before the first serious heat arrives. Book in June or July, and that same repair may take longer to schedule simply because every technician in the region is handling no-cool calls.
Richmond’s climate also makes a strong case for inspecting twice a year rather than once. Local systems don’t get a long off-season. Summer demand runs from May through September, and heating demand picks up again in late fall. One cooling-season inspection and one heating-season inspection make sense because the wear patterns are different for each mode and both seasons push systems hard. A single annual visit catches half the picture.
Knowing what happens during an inspection removes the main reason homeowners put it off: uncertainty about what they’re agreeing to. The process is straightforward, the findings are documented, and the visit typically takes less time than most people expect. At Howell's Heating & Air, we offer free estimates, same-day availability when possible, and 24/7 response, so scheduling ahead of summer is a genuinely low-friction step. Give us a call at (804) 376-8844 and we’ll make sure your system is ready before Richmond’s heat arrives.