Furnace Maintenance in Whitehall, MT

Burner cleaning and inspection, flame sensor polished and microamps measured, igniter condition, inducer and blower compartment vacuumed, blower wheel checked for dust loading, capacitor tested against rating, gas pressure verified, safety chain exercised, drain and trap cleared on condensing units, and the heat exchanger inspected.

We finish with numbers: temperature rise across the exchanger, static pressure across the filter and coil, flame signal, and draft. Recording them each year turns maintenance into a trend line, which is how a slow decline gets caught before it becomes a breakdown.

A gas furnace vents combustion byproducts, and that path has to be intact. We check the exchanger for cracking, verify draft and vent integrity, confirm roll-out and limit switches respond, and look for the soot and heat-discoloration patterns that indicate a problem developing.

In older homes we also look at the whole mechanical room: water heater draft, combustion air openings, and whether a tightened-up house is now competing with the appliances for air.

The most common self-inflicted furnace problem is a filter too restrictive for the blower. A high-MERV filter in a rack sized for a cheap fiberglass one can push static pressure past what the blower can handle, dropping airflow, raising temperature rise and tripping limits.

Closed registers in unused rooms do the same thing from the other direction. We measure, tell you what your system can breathe, and recommend a filter that cleans air without choking the furnace.