01
Arrival and Setup
We park, introduce ourselves, and lay drop cloths around the furnace. You get a quick rundown of what we will check. We shut off the gas valve and power, then remove the burner compartment cover. Setup takes about 10 minutes.
02
Cleaning the Burners
We pull each burner, brush the ports with a wire brush, and vacuum the soot. A dirty burner produces a lazy yellow flame instead of a crisp blue one. We photograph the flame before and after so you can see the difference.
03
Testing Safety Controls
Using a multimeter and thermocouple tester, we check the flame sensor, igniter, limit switch, and pressure switch. We verify the thermocouple holds the pilot. Any reading outside spec gets flagged with the part name and a price.
04
Heat Exchanger Inspection
We run an inspection camera through the exchanger and check for cracks, corrosion, and soot streaking. This is the step that catches carbon monoxide risks. If we find a crack, we shut the system down and walk you through options on the spot.
05
Report and Walkthrough
Before we pack up, we show you the readings, the photos, and the filter condition. You get a written summary with recommendations ranked by urgency. We answer questions, then restore gas and power and verify the furnace fires correctly.