HVAC Maintenance Checklist for Austin Homeowners Before Summer

HVAC Maintenance Checklist for Austin Homeowners

Austin's summer is brutal on HVAC systems. Preparing in March or April — before the heat hits — is the difference between a $150 tune-up and a $3,000 emergency repair in July.

DIY Checklist (Do These Yourself)

Filters

Replace air filter (every 30–45 days in Austin)

Check return air vents for blockage

If you have a media filter (4–5 inch), replace annually

Outdoor unit

Clear at least 2 feet around the condenser unit

Rinse condenser coil fins gently with a garden hose (fin direction: top to bottom)

Check that the unit is level (settlement can cause drainage issues)

Thermostat

Replace batteries in battery-operated thermostats

Test cooling mode (set 3°F below room temp — should engage within a minute)

Check programmed schedule

Vents and returns

Open all supply vents fully (closing vents doesn't save energy and can damage the system)

Make sure furniture isn't blocking return grilles

Professional Tune-Up (Annual, Do in March–April)

A licensed HVAC tech should:

Measure refrigerant charge (add if low, find leak first)

Check electrical connections and contactor

Measure capacitor microfarads (capacitors fail in Austin's heat)

Clean evaporator coil if accessible

Check condensate drain line and pan (drain to outside; can clog in summer)

Measure temperature differential (should be 15–22°F between supply and return)

Check blower motor and belt

Cost: $80–$150 for a tune-up. Worth every dollar in Austin.

Austin-Specific Issues to Ask About

Duct leakage: Austin's hot attics magnify the cost of leaky ducts. Ask about a duct leakage test.

Attic insulation: R-30 minimum; R-38–R-49 is better. Austin attic temps hit 150°F+ in July.

Smart thermostat: Austin Energy offers a $100 rebate for qualifying smart thermostats.

Schedule an HVAC tune-up with a licensed Austin contractor through ContractorLeads101.