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The 5-Minute HVAC Walkaround: What Homeowners Should Check

Writer: Infinity Air
Infinity Air
Oct 19
3 min read

Catch Early Warning Signs and Protect Your Home's Comfort

You don’t need to be a certified technician to play an active role in maintaining your heating and cooling system. In fact, some of the most common issues that cause sudden system shutdowns can be spotted early with a quick, five-minute visual inspection around your home.


Performing a monthly "HVAC walkaround" gives you peace of mind, helps maintain system efficiency, and ensures small warning signs are addressed before they turn into costly repairs.


Here is a quick step-by-step guide on what every homeowner should check during a 5-minute walkaround:

Step 1: Check the Outdoor Unit Clearance (1 Minute)

Head outside to your condenser unit. Leaves, twigs, overgrown grass, and shrubs can restrict airflow through the outdoor coils, forcing your compressor to work harder and overheat.

  • What to look for: Ensure there is at least 2 feet of clear space around all sides of the outdoor unit and clear out any leaves or debris resting on top of the grille.

  • Red flag: Bent coil fins, heavy mud buildup, or plants growing inside the unit housing.


Step 2: Inspect the Condensate Drain Line (1 Minute)

Your air conditioner removes humidity from your indoor air, and that moisture drains outside through a PVC pipe located near your outdoor unit.

  • What to look for: While the system is running, check to see if water is steadily dripping from the drain line. This means the line is actively clearing moisture.

  • Red flag: Standing water around your indoor unit, or a dry outdoor drain line when your AC has been running continuously on a humid day, which often indicates a drain clog.


Step 3: Check Your Air Return & Filter Status (1 Minute)

Indoor airflow is critical for your entire system. A clogged filter starves the blower motor of air and can cause coils to freeze over.

  • What to look for: Pull out your return air filter and inspect it under good light. If you can’t see light through the filter fabric, it’s time for a replacement.

  • Red flag: Visible dust buildup on the return grille or dust blowing out of supply vents when the system kicks on.


Step 4: Feel the Airflow at Your Vents (1 Minute)

Walk through a couple of key rooms in your house and check the supply registers.

  • What to look for: Air should blow steadily from every open vent.

  • Red flag: Weak airflow in certain rooms, unusually warm air when the AC is running, or closed vents in unused rooms (which actually increases pressure and lowers overall efficiency).


Step 5: Listen to the Thermostat & System Startup (1 Minute)

Finish your walkaround by listening to your system as it starts a cooling or heating cycle.

  • What to look for: A smooth click from the thermostat followed by a steady hum from the outdoor unit and blower.

  • Red flag: Loud banging, screeching, rattling, or rapid clicking sounds when the unit turns on.


Catch Issues Early and Get Expert HVAC Repairs With Infinity Air

A quick monthly walkaround keeps you in control of your home's comfort. If you notice strange noises, weak airflow, or standing water during your inspection, don't wait for a complete breakdown.


At Infinity Air, we serve homeowners and businesses across Madison, Rankin, Scott, and Hinds counties with fast, honest, and expert HVAC care. Whether you need an emergency repair or a comprehensive seasonal maintenance check, our local team is just a call away.


Noticed something unusual during your walkaround? Contact Infinity Air today at 601.856.8888 to speak directly with our team!


 
 
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