Air Care repairs, replaces and maintains gas furnaces, heat pumps and thermostats for homes across Nampa, from vintage farmhouses near the historic downtown to new subdivisions around the Ford Idaho Center and Lake Lowell, & more. We are a licensed Idaho HVAC contractor, and emergency service is available 24/7. Call (208) 939-2566 to schedule service.
Rheem equipment installed and servicedNo heat? Call now, or schedule a fall tune-up before the first freeze.
Signs your furnace needs repair
Long stretches of sub-freezing temperatures and the valley's inversion layer put a heavy load on heating equipment in Nampa, and most furnace failures land on the coldest nights of the year. Call (208) 939-2566 when you notice:
- Cold air from the vents while your furnace runs
- An inducer fan that runs while the burners never light
- A click at startup, then silence
- Groaning, squealing or a cabinet that shakes when the blower starts
- Burners that keep shutting off before your home warms up
- A yellow burner flame instead of a blue one
How we diagnose and repair a furnace
We repair every major make and model of heating equipment, from the older 80 percent gas furnaces common in Nampa's historic districts to modulating systems in new developments, and we diagnose with digital manometers, multimeters and combustion analyzers.
Igniters and flame sensors
Hot surface igniters heat to over 2,000 degrees Fahrenheit in seconds, and over time they crack or burn out. If the inducer fan runs but the burners never light, or you hear a click followed by silence, the ignition system is the usual cause. Our technicians carry replacement igniters and control boards. We also clean and align the flame sensor, a small rod that collects oxidation and makes your furnace think the burners never lit.
Blower motors and capacitors
A failing blower motor groans, squeals, shakes the cabinet or will not start, and without airflow the heat exchanger overheats until the high-limit switch shuts your furnace down. We measure the motor's amperage draw against the manufacturer's rating, test the run capacitor that starts it, and can often replace a seized motor on the spot.
Limit switches and safety controls
The high-limit switch shuts off the burners when the air inside your furnace gets too hot, usually because of a clogged filter, closed vents or restricted ductwork. A switch that trips again and again wears out. We test every safety control for continuity and voltage, and when a limit switch is tripping we find the cause before we replace it, so the new switch lasts.
Heat exchangers and carbon monoxide
Years of heating and cooling can crack the seams of a heat exchanger, and a crack can let carbon monoxide into the air you breathe. We inspect the heat exchanger with a camera for cracks, rust and soot, and run a combustion analysis that measures CO in the flue gas and the supply air. If we find a cracked heat exchanger or a CO leak, we shut the furnace down and tag it so it is not run until it is repaired or replaced.
Repair or replace
A gas furnace in the Nampa climate typically lasts 15 to 20 years. If yours is near that age, needs an expensive repair to the blower or control board, or keeps pushing your gas bill up, we show you the repair-versus-replace math. When a repair costs half the price of a new system or more and the unit is out of warranty, replacement is usually the better choice. So is a furnace that needs a different repair every winter.
Efficiency is rated in AFUE, the share of the gas you buy that becomes heat in your home. Older furnaces in Nampa often run at 60 to 70 percent. New standard-efficiency furnaces start at 80 percent, and high-efficiency condensing furnaces reach up to 98 percent. Single-stage furnaces run on or off; two-stage furnaces run on low through most of the winter and switch to high in a cold snap; modulating furnaces adjust their output in steps as small as 1 percent and hold your temperature within a fraction of a degree. We help you calculate the long-term savings of a high-efficiency model.
How we install
We size every new furnace to your home's square footage, attic and wall insulation, window quality and the direction your home faces. An oversized furnace short cycles and leaves hot and cold spots; an undersized one runs all night and never reaches the set temperature.
Your new furnace goes in level and supported to cut vibration and noise. For a high-efficiency condensing furnace we run dedicated PVC intake and exhaust pipes and make sure the acidic condensate drains properly. We check the gas connection for leaks, install a sediment trap (drip leg) ahead of the gas valve, verify electrical polarity and grounding, and fit sheet metal transitions to your supply and return plenums sealed with mastic. We handle the permit and the final safety check.
Fall tune-ups
A precision tune-up every fall is how you avoid a no-heat night in January. We test for carbon monoxide, inspect the flue for corrosion and blockages such as bird nests, clean the burners and the flame sensor, measure the temperature rise against the manufacturer's range, check the gas pressure at the manifold, and check the blower capacitor and amp draw. If a part is drifting out of spec, you hear about it before it fails.
Heat pumps and dual fuel
A heat pump moves heat from the outdoor air into your home and keeps working below freezing. For many Nampa homes we pair one with a gas furnace as a dual-fuel system: the heat pump carries the milder days of fall and early winter, and the furnace takes over when the temperature drops into the teens.
Thermostats and air quality
We install, wire and program Google Nest and Ecobee smart thermostats, including a C-wire for constant power, and we fix blank screens, loose connections and thermostats that read the wrong temperature. For a home with a hot upstairs and a cold downstairs, we install zoning: motorized dampers in your ductwork, each zone on its own thermostat.
Heating your home through a Nampa winter dries out the air inside. Our whole-home humidifiers connect to your furnace and hold indoor humidity in the 35 to 45 percent range, and our air filtration systems catch the dust and pollen that stay indoors through a long winter.
Nampa questions
How often should I have my furnace serviced in Nampa?
We strongly recommend an annual tune-up, ideally in the fall before the freezing temperatures hit Nampa. Regular HVAC service ensures your system is operating efficiently, safely, and maintains the manufacturer’s warranty. It also allows us to catch small issues, like a weak capacitor or a dirty flame sensor, before they turn into a mid-winter breakdown.
What are the signs that my heat exchanger is cracked?
A cracked heat exchanger is a serious issue that requires immediate professional attention. Signs include:
- Soot buildup inside the furnace cabinet.
- A yellow or flickering burner flame (it should be a steady blue).
- Excessive moisture or condensation on windows.
- A strange, chemical smell (often likened to formaldehyde).
- The Carbon Monoxide detector going off.
If you notice any of these, shut off the furnace and call us for Nampa furnace repair immediately.
Can I install a smart thermostat on an older furnace?
In most cases, yes! However, older furnaces often lack a "Common Wire" (C-wire), which provides continuous power to modern smart thermostats like Nest or Ecobee. Air Care technicians can install a C-wire adapter or run new wiring to ensure your smart thermostat works reliably with your older system.
Why does my furnace smell when I turn it on for the first time?
This is known as "dust burn-off." Over the summer, dust settles on the heat exchanger and burners. When you fire up the furnace for the first time in the fall, that dust burns away, creating a distinct burning smell. It should dissipate within 30 minutes. If the smell persists or smells like burning plastic or ozone, call for heating service to rule out an electrical issue.
Is a 96% efficiency furnace worth the extra cost in Nampa?
Given Nampa’s long and cold winters, upgrading to a high-efficiency (90%+) furnace is almost always worth the investment. While the upfront cost is higher than an 80% unit, the monthly savings on your gas bill are significant. Additionally, high-efficiency units are sealed combustion systems, meaning they are safer and quieter than standard units.
What should I check before calling for heater repair?
Before calling for service, check these three things:
- Thermostat: Is it set to "HEAT" and is the temperature set higher than the room temp? Does it need new batteries?
- Filter: Is the filter dirty? A clogged filter can trip the safety limit switch.
- Power: Check your breaker panel to ensure the furnace circuit hasn't tripped, and check the emergency shut-off switch on the side of the furnace.
If these are all clear and you still have no heat, it’s time to call the professionals at Air Care.
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Service hub: Furnace repair and replacement
