Your HVAC system should have routine maintenance done least once a year to ensure your home is properly heated, cooled, and has a clean air flowing through it. If you haven’t had your system checked ahead of winter this year, your furnace may not be heating your home as efficiently as it can. If your system is due for an inspection, here’s how your HVAC technicians will keep your home warm.

What Are the Steps in a Furnace Tune-Up?

1. Inspecting

During the inspection phase, HVAC technicians will check for damage and signs of future issues with the furnace. For example, the furnace’s motor needs to be lubricated every few years to keep friction from wearing down the system’s moving parts. Technicians will lubricate the moving parts, adding years to their lifespan. 

They will also examine the fuel lines for blockages. Blocked fuel lines are a fire hazard and they decrease the furnace’s efficiency. Annual inspections will keep your home warm, safe, and energy-efficient. 

2. Replacing

HVACIf friction or age has damaged parts of the furnace beyond repair, technicians will replace them to keep the system running like new.

While most furnace parts are durable and will last for years, some need to be replaced routinely.

Even when your furnace isn’t in use, dust and debris can accumulate in the filter. To keep it clean, your HVAC technicians will replace it if it’s dirty. As a rule of thumb, replace the filter every three months, even during the off-season.

3. Cleaning

HVAC systems are complicated, which is why technicians should be the ones to clean them. They will clear the blower motor, the burner, the drain line, the coil, and the fan blades of any accumulated dust and debris.  

4. Testing

The technicians will run detailed tests to ensure the furnace is functioning. They will turn the unit off and on to make sure it’s producing enough heat and that the thermostat is recording the increase in heat correctly. 

Since most furnaces use gas or oil to produce heat, technicians will test for leaks in the system. This will prevent a loss in efficiency and any dangers from fumes. 

To maintain high-efficiency, they’ll also test the airflow, ensuring that the furnace is heating each room evenly, and that no heat is escaping. 


If your furnace needs maintenance, reach out to Comfort Tech Heating and Air Conditioning. For over 25 years, their HVAC technicians have offered comprehensive and environmentally-friendly services at affordable rates. Whether you’re in need of installation or repair, their work is backed up by a two-year labor warranty. If you’re in the Thomasville, NC, area, reach out to them at (336) 472-5858 for a free estimate. Mention their website and receive $20 off their many services.