HVAC Repair in Gillette, WY
Homes here need heat from September through June and cooling from July through August. If your system quits, tell us what it's doing and a licensed contractor who covers Campbell County will get in touch.
Tell us about the job
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Ten months of heat, a handful of hot afternoons
Your furnace in Gillette works from September through June. On winter nights that average 13°F, it runs long and often, and the igniter and blower motor take that wear year after year. When the igniter finally fails, the furnace won't light at all and the house goes cold fast.
July and August ask something different of the system. Afternoons average 83°F, and the air conditioner has to cycle on and off to keep up, which puts the strain on the compressor and the capacitor that gets it started. Campbell County has also seen 49 winter storms and 202 damaging wind events over the past ten years, and outages that follow can knock out a furnace's ignition system or a heat pump's controls even after the power comes back on.
- 10 months
- September through June, your system heats
- 2 months
- July through August, it cools
- 13°F
- the average winter night it heats against
- 83°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $160 a year off heating and cooling for a typical Campbell County home.
Estimates for a typical Campbell County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Wyoming fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
- Why is my heat not working?
- Start with the thermostat and the power to the furnace. If the thermostat screen is blank, check the breaker and any switch that looks like a light switch near the furnace itself. A furnace that's getting power but won't fire can be shutting down on a safety switch, often because the filter is clogged and it's overheating inside the cabinet. With nights here dropping to 13°F in the winter, a furnace that trips off and stays off needs a contractor out the same day, not a wait and see.
- Why is my system running but not cooling the house?
- Check the air filter first. A filter packed with dust chokes off airflow across the indoor coil, and when that happens the coil can ice over and blow warm air even though the system runs nonstop. If the filter is clean, look at the outdoor unit and clear away any leaves, grass clippings or debris around it, since the outdoor coil needs open air to release heat. Summer afternoons here reach 83°F, so a system running flat out and not cooling usually means something is blocking airflow on one side or the other, and it's worth having a contractor check the refrigerant charge too.
- What can I check before calling for HVAC repair?
- Check the thermostat batteries and settings first, since a dead battery or a setting bumped to the wrong mode looks exactly like a bigger problem. Next check the filter, and check the breaker panel for a tripped switch. If the outdoor unit is involved, make sure nothing is blocking it and that snow or ice hasn't built up around the base. Wyoming sees plenty of winter storms and wind, and 8% of households here went at least 24 hours without power in 2024, so a tripped breaker after a storm is worth ruling out before anything else.