Furnace Repair in Pueblo, CO
Furnaces here run from October through May. If yours quits, tell us what it's doing and a licensed contractor who covers Pueblo County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat, wearing on the same parts
Pueblo County needs a working furnace from October through May. That is eight months of the year the burner and igniter are doing their job every day, sometimes many times a day, on nights that average 19°F. Each cycle is another start for the igniter and another round of heat for the heat exchanger to take.
Most homes here run on gas, and gas furnaces depend on power to run the blower and controls. The county has seen 184 winter storms and 209 damaging wind events over the past ten years, and statewide, 13% of households lost power for at least a day in 2024. When the power drops on a cold night, a furnace that was already struggling can fail to start back up on its own.
- 8 months
- October through May, your furnace is on duty
- 19°F
- the average winter night it heats against
- 76%
- of homes here heat with gas, so most furnaces here burn gas
- 184 winter storms
- in ten years, the nights a failure hurts most
NOAA nClimDiv, 1991–2020 normals
A new furnace would cut about $80 a year off heating for a typical Pueblo County home.
Estimates for a typical Pueblo County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Colorado fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed and the heat exchanger is sound.
Replacement makes sense when the heat exchanger is cracked or the furnace keeps needing parts.
- Why won't my furnace turn on?
- Start with the thermostat and the power switch, since those cause more no-heat calls than anything inside the furnace itself. Check that the thermostat is set to heat and the temperature is above room temperature, and check that the switch on or near the furnace, which looks like a light switch, hasn't been bumped off. If those are fine, the igniter may have failed, or the flame sensor may be dirty and shutting the furnace down as a safety measure. A furnace that won't start at all during a Pueblo winter needs a same-day look, since nights here average 19°F.
- Why is my furnace blowing cold air?
- In most cases the furnace is still warming up, since air coming through the vents right after startup is cooler than the air that follows once the heat exchanger reaches temperature. If cold air keeps coming after a few minutes, the igniter may not be lighting the burners, or the flame sensor may be shutting the burners off right after they start. A dirty filter can also cause this by blocking airflow enough to trip the high limit switch. That switch cuts the burners but leaves the blower running, so you feel cold air instead of no air at all. Replacing the filter is worth trying first. If cold air continues, the burners themselves need a contractor's attention.
- Why won't my furnace pilot light stay lit?
- A pilot light that won't stay lit is almost always the thermocouple, the small sensor that proves the flame is burning and holds the gas valve open. Once that sensor is worn or coated with soot, it can't confirm the flame fast enough, so the valve closes and the pilot goes out. A draft blowing across the pilot can cause the same thing, so check that vents and panels near the furnace aren't creating airflow across the flame. A standing pilot doesn't run on electricity, so this problem has nothing to do with the power going out. It comes down to the thermocouple or the gas valve, and a contractor can test both directly.