"Tune-up" can mean a lot of things, from a thorough inspection to a technician glancing at the unit and replacing the filter. Here is what a real maintenance visit covers, what you can do yourself, and how to tell the difference.
Why maintenance matters
Heating and cooling systems wear gradually. Coils collect dirt, drains clog, electrical parts weaken, and small refrigerant leaks get worse. Maintenance catches those things while they are cheap to fix, and many manufacturer warranties require documented maintenance to stay valid.
What a cooling visit should include
- Refrigerant check. Measuring pressures and temperatures to see whether the system is charged correctly. Not just "topping it off."
- Coil cleaning or inspection. A dirty outdoor coil makes the system work harder.
- Electrical tests. Capacitors, contactors, and connections are common failure points, and they can be tested before they fail.
- Condensate drain. Clearing the drain line and checking the pan, which prevents water damage.
- Airflow and temperature split. Measuring how much the air cools across the system, which tells the technician how well it is working.
What a heating visit should include
- Burners, ignition, and flame sensor. Cleaning and checking the parts most likely to cause a no-heat call.
- Venting and carbon monoxide. Making sure combustion gases leave the house the way they should.
- Heat exchanger inspection. Looking for cracks or damage where the heat exchanger is accessible.
- Safety controls. Testing the limit and pressure switches that shut the furnace down when something is wrong.
Heat pumps get a version of both visits, since they heat and cool.
What you can do yourself
- Change or clean the filter on the schedule your system needs. This is the single most useful thing a homeowner can do.
- Keep the outdoor unit clear of leaves, plants, and stored items. Give it a couple of feet of breathing room.
- Test your carbon monoxide alarms if you have gas appliances.
- Notice changes. New noises, smells, longer run times, or rooms that stop keeping up are worth mentioning to your technician.
How to tell a real visit from a quick look
A thorough visit takes time, and the technician should be able to tell you what they measured and what they found. Ask for a written report. If something needs attention, they should show you, explain whether it is urgent or can wait, and give you a written price before doing any work.
If you would like a tune-up, book a visit or read about our maintenance plan.