HVAC Repair in St. George, UT
Homes here need heat from October through May and cooling from June through September. If your system quits, tell us what it's doing and a licensed contractor who covers Washington County will get in touch.
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Ten months of work a year on your system
Washington County only gives your system two easy months. From October through May the furnace carries the load, and on winter nights near 28°F it cycles on and off for hours to keep up. Then summer flips the work to the compressor, running it through afternoons that hit 90°F for four straight months.
That back and forth wears on different parts. The igniter takes the hit in winter, since every cold start is another chance for a weak one to fail and leave the burner unlit. The compressor and its capacitor take the hit in summer heat, and when a capacitor gives out the unit hums but the air stays warm. The county has also logged 40 winter storms and 60 damaging wind events over the past ten years, and with 7% of Utah households losing power for a full day or more last year, that same system has to restart cleanly once the power comes back on.
- 8 months
- October through May, your system heats
- 4 months
- June through September, it cools
- 28°F
- the average winter night it heats against
- 90°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $110 a year off heating and cooling for a typical Washington County home.
Estimates for a typical Washington County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Utah 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.
Utah requires HVAC contractors to hold a state license.
The license is held by the contractor, not issued per job, so the same license covers the work whether it's a small repair or a full system installation. The Division of Professional Licensing is the state office that issues it and keeps the contractor on record. In Utah, work under $7,000 does not need a licensed contractor, so a small repair can fall under that line.
A repair to a heating and cooling system can run either side of that $7,000 mark depending on what the job involves. Above it, the license is what stands behind the work, since Utah is one of the states that tests and records the contractor before handing it out. Below it, that requirement doesn't apply, and the state record isn't part of the picture.
Sources: Utah State Legislature · Utah Department of Commerce
- Why is my heat not working?
- The most common reason is the igniter or the flame sensor failing on a gas furnace, or a tripped breaker on an electric system. Check your thermostat first to make sure it's set to heat and the temperature is above room temperature. Check your breaker panel too. With nights averaging 28°F here from December through February, a furnace that won't fire needs attention fast, so if the basics check out, a contractor can find the actual fault.
- Why is my system running but not cooling the house?
- If air is blowing but it's not cold, the most likely causes are a dirty filter, a frozen evaporator coil, or low refrigerant from a leak. Start with the filter. A clogged one starves the coil of airflow and can freeze it solid, and once that happens the system needs time to thaw before it will cool again. If the filter is clean and the vents still blow warm, that points to something a contractor needs to check with gauges.
- What can I check before calling for HVAC repair?
- Check the thermostat settings, the filter, and the breaker panel. A thermostat set wrong or with a dead battery is an easy fix. A dirty filter restricts airflow and can shut a system down on purpose to protect itself. A tripped breaker means the system never got power in the first place. If all that checks out and the system still isn't heating or cooling, the problem is inside the equipment and a licensed contractor will need to diagnose it.