Furnace Repair in Nampa, ID
Furnaces here run from October through May. If yours quits, tell us what it's doing and a licensed contractor who covers Canyon County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat puts real wear on a Nampa furnace
From October through May, your furnace is what stands between you and a 25 degree night. That is eight months of the burner lighting, running, and shutting off, night after night. Each of those starts puts a little more wear on the igniter and the parts that control it, and a worn igniter is a common reason a furnace stops lighting partway through winter.
Most homes here heat with gas, so the furnace still needs power to run even though gas is what heats the air. When the power goes out, the blower and controls go down with it. Idaho households saw outages of 24 hours or longer in 11% of homes in 2024, and a furnace that will not start back up after the power returns is worth checking rather than waiting out.
- 8 months
- October through May, your furnace is on duty
- 25°F
- the average winter night it heats against
- 59%
- of homes here heat with gas, so most furnaces here burn gas
- 37 winter storms
- in ten years, the nights a failure hurts most
NOAA nClimDiv, 1991–2020 normals
A new furnace would cut about $60 a year off heating for a typical Canyon County home.
Estimates for a typical Canyon County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Idaho 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.
Idaho requires HVAC contractors to hold a state license.
The license is issued to the contractor, not to the job, so it's the business or individual doing the work that has to hold it, not each furnace they touch. Idaho's HVAC Board tests and records who gets one, which means a licensed contractor showing up in Canyon County has already met the state's bar before your furnace comes into it.
Because the license belongs to the contractor, that's what stands behind this repair, not a separate approval for this one job. Furnace repair often means gas is involved, and a bad connection is the dangerous part of that work. In Canyon County, 59.4% of homes heat with gas, so a license that's already been tested and put on record by the state is exactly what covers a repair like this one.
Sources: Idaho Legislature · Idaho Division of Occupational and Professional Licenses
- Why won't my furnace turn on?
- Most often the thermostat isn't calling for heat the way you think it is, or power to the furnace has been cut off somewhere. Check that the thermostat is set above room temperature and has fresh batteries if it uses them. Next check the furnace switch, which looks like a light switch near the unit, and the breaker at your panel. If those are fine, the igniter or a safety switch inside the furnace may have failed, and that's a job for a licensed contractor to diagnose.
- Why is my furnace blowing cold air?
- If air is moving but it's not warm, the burners likely aren't lighting even though the blower is running. A dirty flame sensor is a common cause, since it tells the furnace to shut off the gas when it can't detect a flame. A clogged filter can also starve the burners of the airflow they need to stay lit. With winter lows here averaging 25°F, this isn't something to leave for long, so have a contractor check it.
- Why won't my furnace pilot light stay lit?
- A pilot light that won't stay lit usually means the thermocouple has worn out. That's the small sensor that sits in the flame and tells the gas valve it's safe to keep the gas flowing. When it fails, the valve shuts the gas off as a safety measure even though the pilot was burning fine a moment before. A draft blowing out the flame is another cause, but if it keeps happening, the thermocouple needs to be replaced by a licensed contractor.