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HVAC maintenance is a requirement on many manufacturers’ and HVAC contractors’ warranties. Here’s a comprehensive guide to what goes on during the process.
Scheduling Maintenance
Professional furnace maintenance should be scheduled at least once a year, preferably in the fall, before the heating season begins. To set it up, contact a qualified HVAC contractor and request a tune-up appointment. Many companies, including us, offer specials and maintenance plans that include priority service and discounted rates. The process typically takes two hours.
However, it can go on for longer if the technician has to outsource replacement parts or perform additional diagnostics.
Furnace Maintenance Checklist
Furnace maintenance is a step-by-step process. It involves the following:
1. Comprehensive Inspection
Before performing any work, the technician will carefully examine your furnace. They’ll inspect all major components, including electrical wiring, connections, fuel lines, ductwork, and safety controls. This initial check helps identify any wear, corrosion, or potential hazards that often affect performance or safety.
After this inspection, they’ll provide you with a report detailing the furnace’s current state and the recommended services that need to be done. If there are tasks that need to be outsourced, such as electrical upgrades or gas line repairs, or components to be replaced, those will be clearly noted. This ensures you have a full understanding of the scope of work and associated labor costs before any repairs or adjustments begin.
2. Cleaning
The next step is often cleaning the furnace. The technician will clean the blower motor, fan blades, heat exchanger, thermostat sensors, filters (if you have a reusable type), ducts, and other components. Dust, debris, and buildup in these areas can reduce efficiency and strain the system.
For instance, dirt on the heat exchange acts as a layer of insulation, preventing proper heat transfer. This forces the furnace to work harder to warm up air, increasing energy consumption and wear on the system. Similarly, dirty filters can restrict airflow, leading to uneven temperature control and overheating issues.
3. Lubrication of Moving Parts
After cleaning, the technician will lubricate all moving components. Parts like blower motor bearings, fan belts, and the inducer motor can accumulate dust and debris, which increases friction and reduces both efficiency and overall system performance. This is why professionals must first remove any buildup before applying a lubricant. Adding oil or grease to dirty components will create a gritty mixture that acts as an abrasive, grinding down the parts instead of protecting them.
4. Tightening Electrical Connections
Faulty or degraded wiring can lead to intermittent operation, short cycling, or complete system failure. If the inspection revealed that the terminals or connections are corroded, loose, or showing signs of overheating, the technician will clean, tighten, or replace them to restore safe, stable performance.
They’ll also verify voltage levels and test components like the control board, relays, and safety switches to ensure everything is functioning within manufacturer specifications. Furnace-related electrical hazards are among the most dangerous threats in the home; therefore, they must be prevented to protect your property and family.
5. Resolving Issues
If any components are found to be damaged, worn out, or operating outside of safe parameters, the technician will help you understand the issues and make a return visit to repair or replace them. Since repairs fall outside the scope of routine tune-ups, we don’t address them in the same visit, and always get your approval first.
Issues we might find include malfunctioning igniters, faulty limit switches, or leaky ducts and gas lines. Dealing with them promptly prevents more costly repairs or complete system replacement. It also enhances energy efficiency and ensures consistent, reliable heating throughout the cold season.
6. Calibrating Settings
Next, the technician will recalibrate sensors and update control settings if necessary. A furnace is only as effective as its thermostat. So it’s not enough for sensors to be merely accurate; they must also be precise. Precision means consistent accuracy over time, regardless of environmental changes or system load.
7. Final Testing and Official Report
After a complete service, the technician will test for performance and efficiency in your presence. Ensure your furnace operates quietly, produces fresh, consistent warm air in every section of your house, and cycles normally (typically two to three times in an hour). If anything seems off or if you have questions, this is the time to speak up. You should be fully satisfied with the work done before signing off.
The technician should also provide a formal service report detailing the tasks performed, performance metrics and test results, recommended follow-up actions, and future maintenance needs. Keep this report in your records as it is useful for warranty claims, resale documentation, and tracking your system’s long-term health.
Contact FTS Heating & Cooling for More Information
Call FTS Heating & Cooling for all your furnace maintenance needs in Springfield and the surrounding areas. Our technicians bring over 20 years of hands-on experience, undergo annual training to stay current with the latest technologies, and maintain the highest standards of professionalism. You can trust us to deliver a reliable, tailored service, and can save money by enrolling in our FTS VIP Warranty Plus Service Maintenance Plan.
To learn more, contact FTS Heating & Cooling for furnace maintenance in Springfield.
