How often should I really change my filter?

Check monthly and replace based on what you see. Homes with pets, renovations or heavy run time often need one-inch filters replaced every 30 to 60 days, while deeper media filters last longer.

They can slow biological growth in the pan, but they do not clear an existing clog and they are not a substitute for flushing the line and trap.

Can I clean my own evaporator coil?

Access is usually poor and fins damage easily. Cleaning the upstream face — where the dirt actually is — typically requires partial disassembly, which is technician work.

Does maintenance void or protect my warranty?

Many manufacturers require documented annual maintenance for warranty coverage. Keeping records protects you if a major component fails.

Checklist

AC Maintenance Checklist for Florida Homes

Two lists matter: the short one you can handle yourself, and the longer one that requires instruments. Doing the first well prevents most of the failures that lead to the second.

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Monthly (homeowner)

Look at the filter and hold it up to light; replace when it noticeably blocks light.
Confirm the filter seats tightly with no gaps around the frame.
Walk the house and confirm supply and return vents are open and unobstructed.
Check the outdoor unit for grass clippings, leaves and vine growth.
Listen for new noises during startup and operation.
Note the indoor humidity reading if your thermostat displays it.

Every one to three months (homeowner)

Flush the condensate cleanout with a cup of distilled white vinegar.
Confirm the exterior drain outlet drips while the system runs on humid days.
Rinse loose debris off the outdoor coil with a gentle hose stream, power off.
Trim vegetation to keep about two feet of clearance around the condenser.
Verify the pad under the outdoor unit has not settled or shifted.
Check for wet spots or staining near the indoor unit.

Annually (technician)

Measure static pressure and airflow across the coil.
Clean the condenser coil properly and inspect the evaporator coil.
Clear and flush the condensate line and trap; test float switches.
Test capacitors, contactor, amp draw and connection integrity.
Evaluate charge with superheat and subcooling rather than pressures alone.
Inspect blower wheel, motor, bearings and speed configuration.
Verify thermostat configuration and cooling cycle behavior.
Document readings so next year's comparison means something.

Timing through the year

Season	Focus
Late winter / early spring	Full professional tune-up before sustained heat
Spring	Pollen cleanup on the outdoor coil; filter changes more often
Summer	Drain flushes, filter checks, watch for run-time changes
After storms	Clear debris, check the pad, have electrical components inspected
Fall	Second check for heat pumps before heating season
Any time	Address new noises, smells or performance changes early

Leave anything involving electrical panels, capacitors, refrigerant or disassembly to a technician. The homeowner list above is deliberately limited to safe tasks.

Frequently Asked Questions

How often should I really change my filter?: Check monthly and replace based on what you see. Homes with pets, renovations or heavy run time often need one-inch filters replaced every 30 to 60 days, while deeper media filters last longer.
Do pan tablets work?: They can slow biological growth in the pan, but they do not clear an existing clog and they are not a substitute for flushing the line and trap.
Can I clean my own evaporator coil?: Access is usually poor and fins damage easily. Cleaning the upstream face — where the dirt actually is — typically requires partial disassembly, which is technician work.
Does maintenance void or protect my warranty?: Many manufacturers require documented annual maintenance for warranty coverage. Keeping records protects you if a major component fails.

Prefer to talk it through? Call 352-707-8045 or send a service request.

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