At Trilogy AC, we’ve compiled this 2025 HVAC Maintenance Checklist to ensure your heating and cooling system gets the service it needs. Routine HVAC service maintains comfort and efficiency and can extend the system’s lifespan. It can also save you money by preventing future problems, which can be expensive to fix when your local contractor is busy.
The maintenance tasks performed can depend on the season. We’ll look at the typical spring/summer and fall/winter HVAC maintenance checklists. While you should change the filter every 90 days (and check it monthly) and keep the area around each unit clean, trained professionals complete many other tasks so the system runs at peak efficiency.
Steps for Any HVAC Maintenance Check-Up
Whenever your HVAC system is serviced, the technician should include the following steps:
- Check the Thermostat Settings: Check the room temperature reaches the set temperature and that your heating and cooling system responds to changes in settings. The technician will also see whether the system is set to run most efficiently.
- Check System Controls: The controls are tested to make sure the system starts, runs, and shuts off properly and that there are no safety issues.
- Tighten Electrical Connections: The voltage and current on motors and other components are tested. Faulty electrical components are replaced and loose connections are tightened to eliminate safety hazards.
- Lubricate Moving Parts: Motors, bearings, and other moving parts are lubricated to reduce friction, which can otherwise increase energy consumption.
- Inspect the Condensate Line: Your HVAC unit’s condensate drain and line are inspected for buildup and clogs. A clear drain helps avoid humidity problems and water damage.
Fall/Winter 2025 HVAC Maintenance Checklist
In the fall and leading into winter, your heating system should be the focus of preventative maintenance. It can avoid needing more costly heating services during an emergency. Heating equipment maintenance includes the following tasks:
- Check air filters and replace them if necessary.
- Check burners and other heating elements for wear.
- Measure gas pressure.
- Inspect gas or oil connections.
- Check the heat exchanger for cracks and other damage.
- Check the draft inducer motor, ignitor, ignition board, etc.
- Check the flue for damage or clogs.
- Make sure the flue assembly is securely attached.
- Replace worn or frayed belts and pulleys.
- Check for worn controls and electrical components.
- Clean the furnace fan and blower assembly.
- Look for dust, debris, and mold in the vents and ductwork.
Spring/Summer 2025 HVAC Maintenance Checklist
By the spring, you should start to think about AC maintenance. Scheduling air conditioner service now ensures it can meet the demand all summer long. This should include the following steps:
- Clean and replace air filters as needed.
- Clean the condenser and evaporator coils.
- Check drain lines and clear any clogs.
- Empty the drain pan if there’s standing water.
- Test the refrigerant level and recharge the unit if necessary.
- Test for refrigerant leaks.
- Inspect, clean, and adjust AC blower components.
- Test the thermostat and air conditioner controls.
- Measure voltage and current.
- Tighten electrical connections.
- Replace worn belts and pulleys.
- Clean blowers, blades, and other parts.
- Clear debris from the outdoor unit.
- Make sure the cabinet door closes properly.
- Check vents and ducts for dirt and debris to clean.
Hire a Professional for HVAC Maintenance
This 2025 HVAC Maintenance Checklist is a guide to help you know what to expect during a routine service call. Review your local contractor’s maintenance plan to see if it provides options and is adaptable. The contract’s terms should be specific to your type of system and how frequently it requires service. For most systems, spring and fall visits are enough, but other equipment may need more frequent maintenance. Faster results, quality service, and fair pricing are other reasons to join a maintenance plan.
Schedule HVAC Maintenance with Trilogy AC
We hope our 2025 HVAC Maintenance Checklist helps you better understand the service needs of your heating and cooling system. Feel free to use our other resources, which include a list of HVAC terminology, troubleshooting tips, and a SEER calculator. It can help determine how much you can save with a new HVAC system; once we install it, our team keeps it in top shape with regular tune-ups. For professional AC, heating, air quality, and other services in Texas, call (832) 529-2661 today.
