A Season-by-Season AC Checklist for Southwest Florida
Southwest Florida's AC calendar breaks into four real seasons, not one generic yearly tune-up, and each one asks for a different short list of tasks. This is that list in checklist form: what to do each season, roughly when, and whether it's a homeowner task or one that belongs to a licensed technician. It's built to sit alongside the site's month-by-month maintenance guide rather than repeat it, so reach for this version when you want the short answer: what's due right now, and who should actually be doing it.
How to Use This Checklist
This is a checklist, not a story. Southwest Florida's AC year already gets a full month-by-month walkthrough in the site's year-round AC maintenance guide; this page exists for the moment you don't want the story, you just want to know what's due right now. Each season below breaks into a short list, tagged by who actually does the work, and there's no need to read it start to finish. Skip straight to whichever season it currently is.
Two labels do most of the work here. Homeowner: marks a task that takes a few minutes and no special tools: a filter, a thermostat setting, a battery, a light rinse, a drain flush. Pro: marks a task that belongs to a licensed technician, anything involving electrical components, refrigerant, or a full inspection under load. That boundary doesn't move from season to season. What changes is how often each task needs doing, and what gets added to the list alongside it.
Spring Checklist: March Through May
Homeowner: Filter, checked against a light and swapped if it's dirty. Thermostat batteries and schedule, reset for the longer, hotter days ahead. Growth cleared away from the outdoor unit, then a gentle rinse of its exterior faces, top down, system switched off first. The site's guide to cleaning around an outdoor AC unit covers the clearance it needs and what a hose should never be aimed at.
Pro: Spring is the natural window to book the pre-season visit under the Annual Comfort Plan, ahead of the stretch that puts real demand on the system. That visit is the full 34-point inspection covered further down this checklist, not a shorter version of it.
Summer Checklist: June Through September
Homeowner: Filter cadence tightens up for this stretch. Pets, heavy dust, or a system that barely shuts off through summer all push the interval down to roughly every two to four weeks instead of the spring pace; the site's page on Florida filter-change cadence lays out exactly which households fall where.
Homeowner: Peak humidity also tends to be when a condensate line finally clogs, simply because so much more water is moving through it than earlier in the year. A basic flush is a fair DIY task, covered in the site's page on clearing an AC drain line yourself, right down to where that job stops and a technician's begins.
Homeowner: A tripped breaker gets one reset: flip it back, set the thermostat back to cool, and see if it holds. A second trip means an electrical fault somewhere inside the system itself, not the panel, and that's the stop sign: call rather than resetting it again.
Homeowner: Hurricane season shares this same stretch of the calendar, layered on top of peak cooling demand rather than replacing it. Surge protection for the outdoor unit and knowing what loose items nearby need to be moved or tied down before wind gets to them both get a full walkthrough in the site's guide to prepping an AC for hurricane season. The short version here: ordinary upkeep doesn't get to pause just because storm prep landed on the same weeks.
Pro: Repairs stacking up faster than usual mid-summer, more than one call in a matter of weeks, is worth raising directly rather than filing away until the fall visit.
Fall Checklist: October Through November
Pro: The second anchor visit lands here, a post-season inspection built to surface whatever the hottest months left behind before it sits unnoticed all winter. A real inspection steps through the system's major categories rather than a glance at the outdoor cabinet; the site's breakdown of what a 34-point AC tune-up actually checks walks through what that includes.
Homeowner: Fall is also a sensible moment to bring your own records up to date: service dates, what was found, what it cost. The site's page on what AC paperwork is worth keeping lists what's actually worth hanging onto, and it matters more than it feels like it should the day a warranty claim or a sale comes up.
Pro: A post-season visit that turns up several small failures instead of one, or a system that plainly worked harder than it should have, is a fair prompt to start talking about a plan rather than waiting for next August to force the conversation.
Winter Checklist: December Through February
Homeowner: This is the shortest list of the year, not an empty one. Keep the filter and thermostat habits going even though the system finally gets a break; a lighter workload isn't the same as no workload at all here.
Homeowner: If the house sits empty for a stretch while you head north for the season, that's a separate protocol rather than a line on this checklist. Departure settings, humidity strategy, and how to monitor a closed-up house get their own full walkthrough in the site's snowbird HVAC guide.
Pro: If you're staying put, the milder weeks are a fair opening to knock out whatever kept getting pushed back earlier in the year, an overdue cleaning, or a straight read on whether an older system is worth budgeting a replacement for before it has to earn its keep again.
The Two Visits That Anchor Every Season
Every season above points back to the same two professional visits, spring and fall, rather than asking for a new appointment every few weeks. That's what the AC maintenance plan is built around: the $99-per-visit Annual Comfort Plan, two visits a year, each one a full 34-point inspection of the air handler and outdoor condenser, timed to land right before and right after the stretch of the year that punishes equipment hardest.
Booking both visits on that rhythm is what turns this whole checklist from a list of things to remember into two dates on a calendar and a handful of small habits filling the gaps between them. The homeowner-side items above matter, but they're maintenance in between visits, not a substitute for either one.
One Habit Worth Repeating in Every Season
Everything above is timed to a specific stretch of the calendar, but one habit is worth keeping in all four seasons: a quick, plain read on the power bill and how the house actually feels, room to room, regardless of what season this checklist currently has you on.
A bill that's crept upward with no change in habits, or a room that's quietly started running warmer than the rest, doesn't wait for the next item on this list to matter. Either one is worth bringing up at the next scheduled visit, or worth a call sooner if the change is sharp rather than a slow drift over months.
When the Checklist Stops and the Phone Call Starts
A few situations override every item on this list, no matter what season it is. If the system is frozen or clearly struggling, switch your thermostat to off (not just up) to protect the system. If you notice a burning smell at any point, shut the system off and call right away rather than waiting to see if it passes.
The same override applies to anything past the homeowner side of this checklist: a breaker that won't hold after one reset, a float switch that trips again after one careful flush, water somewhere it shouldn't be. None of that is a homeowner troubleshooting project, and none of it needs to wait for the next season on this list before it gets looked at.
Ready to Put Both Anchor Visits on the Calendar?
Call or text (239) 350-5234 to put both anchor visits on the calendar, pre-season and post-season, under the $99-per-visit Annual Comfort Plan. Response during business hours runs under 3 hours on average.