WHat is the 25-Point HVAC Preventive Maintenance Inspection Checklist?

At PureSkyy Air Conditioning & Heating, our unique 25-Point HVAC Preventive Maintenance Inspection Checklist is a comprehensive guide followed by our certified technicians to ensure your heating and cooling system runs at peak performance year-round.

This detailed HVAC tune-up checklist is included in every $79 maintenance service we provide. It covers all essential components of your system to help identify potential issues early, improve energy efficiency, and extend the life of your equipment.

Below, you’ll find each of the 25 inspection points included in our HVAC maintenance service. You can scroll through the full list.

Please note, Every PureSkyy technician is trained to follow this checklist closely, ensuring you receive consistent, high-quality service during every inspection.

✺ ALL 25 POINTS ARE INCLUDED IN YOUR MAINTENANCE TUNE UP

✺ ALL 25 POINTS ARE INCLUDED IN YOUR MAINTENANCE TUNE UP

HVAC furnace and duct system inside an outdoor utility closet with a partially open door, situated on a stucco exterior wall with greenery on the left side.

HVAC Tune-Up Service

$79.00

Per Unit

This tune-up is perfect for seasonal maintenance or if you’re preparing for extreme summer or winter temperatures.

Designed to catch small issues before they become costly repairs and extend the life of your equipment.


What you’ll get

  • 1

    Thermostat Function Test.
    Confirm accurate temperature calibration and operation (cooling/heating modes).

  • 2

    Air Filter Inspection & standard one inch filter Replacement

  • 3

    Return Airflow Check.
    Inspect for blockages and measure return static pressure.

  • 4

    Supply Airflow Check.
    Confirm airflow at registers; inspect for restrictions or balance issues.

  • 5

    Blower Motor (Indoor Fan).
    Inspect motor operation, amp draw, and capacitor reading.

  • 6

    Blower Wheel Inspection.
    Check for dust, debris, and balance issues.

  • 7

    Electrical Connections. Check tighten terminals, inspect wiring for wear/burnt connections.

  • 8

    Voltage Measurements.
    Verify voltage and amperage on all motors and components.

  • 9

    Capacitor Testing.
    Documents readings and ratings

  • 10

    Contactor Inspection.
    Look for pitting, carbon build-up, and coil resistance.

  • 11

    Condensate Drain Line & Pan Check.
    Flush drain; inspect for clogs or biological growth.

  • 12

    Refrigerant Pressure Check (only if necessary)
    Measure suction and discharge pressures; ensure within specs.

  • 13

    Superheat/Subcool Calculation.
    Ensure system is charged properly based on manufacturer data.

  • 14

    Evaporator Coil Inspection.
    Check for dirt, biological growth, and proper airflow across coil.

  • 15

    Condenser Coil Inspection.
    Check for damage, dirt, and fin condition.

  • 16

    Outdoor Fan Motor Operation.
    Inspect motor, bearings, and amp draw.

  • 17

    Compressor Operation Check.
    Listen for unusual noise, verify amp draw, and temperature at terminals.

  • 18

    System Temperature Split.
    Measure delta T between return and supply air (typically 18°-22°F).

  • 19

    Safety Switch Test.
    Verify operation of float switch, high-pressure switch, etc.

  • 20

    Heat Exchanger Inspection (for gas furnaces)
    Check for cracks, corrosion, or discoloration.

  • 21

    Burner Operation & Flame Sensor (for gas systems)
    Inspect ignition, flame color, and clean flame sensor rod.

  • 22

    Gas Pressure Check (for gas furnaces)
    Measure manifold pressure against spec (usually 3.5” WC).

  • 23

    Thermostat Battery Check.
    Replacement if needed

  • 24

    Ductwork Inspection.
    Look for leaks, damage, disconnections, or rodent activity.

  • 25

    Energy Audit.
    calculate & document systems working efficiency and energy consumption efficiency (SEER Rating)

✺ Frequently asked questions ✺

  • While some companies use a similar method, most don’t follow a consistent, in-depth process like we do. At PureSkyy, we developed our own 25-Point HVAC Maintenance Checklist to ensure:

    • Nothing gets overlooked

    • Your equipment receives top-to-bottom care

    • You get more value from every tune-up

    It’s part of our mission to offer a higher standard of service—not just a quick in-and-out job with unnecessary up-sales.

  • Our certified HVAC technicians are trained to follow our 25-Point Preventive Maintenance Checklist step-by-step—no shortcuts. After each tune-up, you’ll receive a detailed service report, including:

    • Photos of your system

    • Notes on any concerns or components that didn’t meet standards

    • Confirmation that every point on the checklist was completed

    This ensures full transparency and gives you peace of mind that your system was thoroughly inspected and maintained.

  • Our tune-ups typically take 45 minutes to an hour per unit, depending on system condition and accessibility. Every technician follows the same process to ensure efficiency and consistent quality—without rushing or cutting corners.

  • This checklist is designed to prevent small problems from becoming costly breakdowns. By thoroughly inspecting each point, we can:

    • Catch minor issues early

    • Extend the lifespan of your HVAC system

    • Improve efficiency and performance

    • Help you avoid emergency repairs

    Think of it as preventive maintenance that protects your comfort—and your wallet.