HVAC Frequently Asked Questions – Orem Heating and Air Pros

We are your local Orem Heating and Air Pros, and over the years of serving homeowners throughout Orem and Utah Valley, we have heard a lot of great questions. Some come from homeowners trying to figure out whether what they are hearing or seeing from their HVAC system is normal. Some come from people facing a real failure and trying to understand their options. Some come from homeowners who want to make smart long-term decisions about their heating and cooling equipment rather than just reacting to problems when they arise.

This page is our attempt to answer all of those questions in one place. We cover every service we offer — AC repair and installation, furnace repair and installation, boiler repair and installation, ductless mini split installation and repair, and emergency HVAC repair — with the same honest, plain-language approach we bring to every service call in Orem.

We are the trusted local experts in Orem for heating and cooling, and we believe that an informed homeowner makes better decisions about their home’s most critical comfort systems. Utah Valley’s climate demands a lot from HVAC equipment — serious summers with sustained heat in the 90s, real winters with sustained cold that tests every component in a heating system. We have worked through both in Orem homes for years, and the answers here reflect that real-world experience rather than generic industry information.

If your question is not answered here, or if something you read here prompts a more specific question about your own system, reach out to us for assistance and we will give you a straight answer. We serve Orem, Vineyard, Provo, Lindon, Pleasant Grove, American Fork, Springville, and the surrounding Utah Valley communities.

General Heating and Air Conditioning Questions in Orem

How often should I have my HVAC system serviced in Orem?

We recommend two service visits per year for most Orem homeowners — one in the fall to tune up and inspect the heating system before winter, and one in the spring to prepare the cooling system before summer. Utah Valley’s climate pushes HVAC equipment hard in both seasons, and catching developing problems before they turn into failures during peak weather is worth the investment. A furnace that gets a fall tune-up in Orem is far less likely to fail on the coldest night of January than one that has not been touched in three years.

How do I know if my HVAC system is undersized for my Orem home?

An undersized heating or cooling system runs almost constantly and still cannot reach the temperature set on the thermostat. In summer, an undersized AC will run all day and the home will still be 80 degrees when it is 95 outside. In winter, the furnace runs without stopping and bedrooms away from the unit are still cold. This is different from a system that has a repair issue — an undersized system behaves this way consistently, not just on the most extreme days. We can evaluate your equipment’s capacity against your home’s actual heating and cooling load if you have concerns.

What is the average lifespan of HVAC equipment in Utah Valley’s climate?

Most gas furnaces last 15 to 20 years with regular maintenance. Central air conditioning systems last about the same — 15 to 20 years. Boilers often last 20 to 30 years. Ductless mini split systems typically last 15 to 20 years. These ranges assume proper installation, correct sizing, and annual professional maintenance. Equipment that was improperly installed, incorrectly sized, or not maintained consistently tends to fail earlier.

How do I know when to repair vs. replace my HVAC system?

System age and the cost of the repair relative to the value of the equipment are the two key factors. For a system under 10 years old with a moderate repair, fixing it is almost always the right call. For a system over 15 years old facing a major repair — heat exchanger crack, compressor failure, or major control board failure — replacement is worth evaluating seriously. We assess both options honestly on every service call in Orem and give you a clear picture of the trade-offs.

Should I set my thermostat to AUTO or ON for the fan?

AUTO is almost always the right setting for Orem homes. With the fan set to AUTO, the blower runs only when the system is actively heating or cooling. Set to ON, it runs continuously — which means it circulates unconditioned air when the system is not running and can add humidity in summer by blowing air across the wet evaporator coil between cooling cycles. There are specific situations where continuous fan operation has benefits, but for most Orem homeowners, AUTO is the correct day-to-day setting.

Air Conditioning Repair and Installation FAQs in Orem

Why is my AC running but not cooling my Orem home?

The most common causes are low refrigerant due to a leak, a severely fouled condenser coil reducing the system’s ability to reject heat, a failing capacitor that is reducing compressor efficiency, or a completely blocked air filter starving the system of airflow. In Orem’s summer heat, any of these issues that might be manageable in moderate weather become a real problem when outdoor temperatures are in the 90s. We diagnose the specific cause on every call rather than defaulting to the most common one.

How do I know if my AC refrigerant is low?

Signs of low refrigerant include gradually worsening cooling performance over weeks, ice forming on the refrigerant lines or the indoor coil, the system running constantly without achieving the set temperature, and occasionally a hissing or bubbling sound near the refrigerant connections. Low refrigerant is not a maintenance item — it means there is a leak somewhere in the system that needs to be found and repaired before adding refrigerant makes any sense.

How long does a central AC system last in Orem?

With proper installation and annual maintenance, most central air conditioning systems last 15 to 20 years in Utah Valley. Systems that are correctly sized and maintained consistently tend to reach the upper end of that range. Orem summers push AC systems hard — units running through weeks of 90-plus degree weather accumulate wear faster than systems in milder climates, which makes annual spring tune-ups particularly valuable here.

What SEER rating should I look for in a new AC for an Orem home?

The federal minimum for new equipment in the Southwest region is 15 SEER2 for most systems. Higher SEER ratings — 18 to 20 and above — offer better efficiency and lower operating costs. The right choice depends on how long you plan to stay in the home, your current energy bills, and the cost difference between equipment options. We help Orem homeowners evaluate this honestly rather than defaulting to the most expensive system.

Why does my AC smell musty when it starts up?

A musty smell during AC operation almost always indicates mold or mildew growth on the evaporator coil or in the drain pan — areas that stay moist and can develop biological growth when the drain is not clearing completely or when the system sits dormant between seasons. This is worth addressing both for comfort and for air quality in your Orem home. We clean evaporator coils and evaluate drain system function as part of the repair when this issue is present.

Can you install a new AC system in an Orem home without existing ductwork?

Yes, through two primary approaches. A ductless mini split system provides cooling without any ductwork and is often the cleanest solution for homes or spaces without existing ducts. In homes where installing ductwork is practical, we can design and install a complete duct system alongside the central AC equipment. We evaluate both options and help you determine which makes more sense for your specific Orem home.

Furnace and Heating Repair and Installation FAQs in Orem

Why does my furnace keep shutting off before my Orem home gets warm?

This is called short-cycling and it has several common causes: a dirty flame sensor causing the burner to shut off prematurely, a restricted air filter causing the heat exchanger to overheat and trip the limit switch, a heat exchanger with a developing crack causing a safety limit to trigger, or a furnace that was installed oversized and reaches the thermostat setpoint before distributing heat evenly. Each cause requires a different repair, and identifying the right one requires a thorough diagnostic.

What does a yellow burner flame mean on my furnace?

A healthy gas furnace burner produces a steady blue flame. A yellow or orange flame indicates incomplete combustion, which generates carbon monoxide as a byproduct. This is a safety issue that should be evaluated immediately. Do not continue operating a furnace with a consistently yellow or flickering flame. Call us for a diagnostic. If you smell gas or suspect a gas leak, go outside immediately and call 911 – this is a serious emergency that needs urgent attention from the gas company.

How do I know if my Orem furnace’s heat exchanger is cracked?

Symptoms of a cracked heat exchanger include: unusual smells (a slight combustion odor coming through the vents), soot marks around the furnace cabinet, a CO detector alarm, a visible crack during inspection, or a flame that visibly flickers when the blower kicks on. Heat exchanger inspection requires the right tools and training — it is not something a homeowner can reliably self-assess. We inspect the heat exchanger on every furnace service call because the safety stakes are too high to skip it.

What is the difference between a single-stage and two-stage furnace for an Orem home?

A single-stage furnace runs at full capacity every time it comes on. A two-stage furnace has a lower firing rate for moderate days and ramps to full output when temperatures are at their coldest. For Orem homeowners, two-stage systems deliver more even heat distribution, quieter operation at the lower stage, and better efficiency on days that do not demand full output. Larger homes or homes with noticeable room-to-room temperature variation tend to benefit the most from a two-stage installation.

How much does it cost to heat a home in Orem with a high-efficiency vs. standard furnace?

The exact numbers depend on your home’s heating load, current gas rates, and how many months your system runs actively. The difference between an 80 AFUE standard furnace and a 96 AFUE high-efficiency model is roughly 16 percent of your gas heating cost — over a full Utah Valley winter, that adds up meaningfully. For a home with a significant heating load in Orem, the efficiency improvement typically pays back the cost difference over several years of operation. We can walk you through an honest comparison for your specific situation.

Can you install a furnace in an Orem home that currently has electric baseboard heat?

Yes. Converting from electric resistance heat to a gas furnace is one of the projects we handle in Orem homes. It involves installing the furnace, designing and installing a duct system if one does not exist, connecting to the gas supply, and installing the flue venting. For homes with high electric heating bills, the operating cost savings after conversion are typically substantial. We assess the full scope of the project and walk you through what is involved before any work begins.

Boiler Repair and Installation FAQs in Orem

What causes a boiler to make kettling or banging sounds?

Kettling or banging sounds in a boiler usually come from one of three sources: scale buildup on the heat exchanger surfaces causing localized boiling, an expansion tank that has lost its air pre-charge and is allowing dramatic pressure swings, or air trapped in the distribution circuit creating turbulence in the flow. Each of these has a different repair. We identify which is actually occurring through a systematic diagnostic rather than defaulting to the most common cause.

Why does my Orem home’s boiler keep losing pressure?

Boiler pressure loss is caused by water leaving the system somewhere. Common sources include a pressure relief valve that is weeping and releasing small amounts of water during heating cycles, a leaking zone valve or air separator fitting, a developing leak in the distribution piping, or an expansion tank that has failed and is causing the relief valve to open. We trace the source of the loss systematically and repair the actual cause.

Is it worth repairing an old boiler or should I replace it?

Most boilers last 20 to 30 years with good maintenance. For a boiler under 20 years old with a specific, repairable component failure, repair makes sense in most cases. For a unit over 25 years old with significant heat exchanger corrosion, repeated circulation problems, or multiple failing components, replacement is worth evaluating. We give Orem homeowners an honest picture of both options based on the actual condition of the equipment, not a bias toward whichever is more work for us.

Can you add radiant floor heating to my Orem home?

Yes. Radiant floor heating is one of the most comfortable heating configurations available and pairs naturally with a properly sized boiler system. Adding radiant heat to an Orem home as part of a renovation or addition involves designing the loop system, selecting the correct boiler capacity and water temperature setpoints, and installing the zone controls that manage radiant zones differently from standard hydronic zones. We handle this type of project and can evaluate whether your existing boiler has the capacity to support an added radiant zone.

Ductless AC and Mini-Split Repair and Installation FAQs in Orem

What is the best use case for a ductless mini split in an Orem home?

Ductless mini splits work especially well in spaces that are not served by the existing duct system — finished basements, home additions, converted garages, and rooms that are consistently too warm or too cold relative to the rest of the house. They are also a strong option for older Orem homes where adding ductwork would require significant renovation work. And for homeowners who want zone-specific temperature control in specific areas, a mini split delivers that without modifying the central system.

Can a mini split handle both heating and cooling in an Orem home?

Yes. Modern mini splits are heat pumps — they move heat rather than generate it. In cooling mode, they move heat from inside the space to outside. In heating mode, they extract heat from outdoor air and bring it inside. Current cold-climate models maintain effective heating output well below freezing, covering most of what Orem winters deliver. For the occasional extreme cold event, a backup heat source may be appropriate depending on the system.

Why is my ductless mini split displaying an error code?

Error codes in mini split systems point toward specific subsystems — refrigerant circuit faults, sensor failures, communication errors between the indoor and outdoor units, and inverter board issues, among others. Interpreting the codes correctly and testing the identified subsystem requires manufacturer-specific diagnostic tools that we carry for the brands common to Orem homes. Do not attempt to clear the code and keep running the system without understanding what it is responding to.

How often should a ductless mini split be serviced in Orem?

The indoor unit filter should be cleaned or rinsed by the homeowner every one to two months during active use — this is a simple task and it significantly affects system performance and air quality. Professional service, which includes indoor coil cleaning, refrigerant system check, and electrical inspection, is recommended every one to two years. Mini splits that go several years without a professional cleaning often develop the musty odor and reduced capacity that come from coil fouling.

Emergency HVAC Repair FAQs in Orem

What should I do immediately when my heat goes out in an Orem winter?

First, do the quick checks: thermostat settings and batteries, circuit breaker for the furnace, the furnace power switch, and the air filter. If those are all fine and the system still will not run, call us. While waiting, close off unused rooms to concentrate remaining warmth, use portable heaters if you have them — keeping them clear of flammables and away from children — and layer up. For families with infants or elderly members, consider whether staying at a warm location temporarily is the right call while we get to you.

Do you actually respond to HVAC emergencies after hours in Orem?

Yes. We take emergency calls and we respond. We are a local Orem company with real technicians who serve this community, not a call center that routes tickets for a next-day response. When you call us with a true heating or cooling emergency, you reach someone who can dispatch help to your Orem home, not someone who takes your name and says someone will call you in the morning.

My carbon monoxide alarm went off near my furnace. What should I do?

Get everyone — including pets — out of the home immediately. Do not stop to gather belongings. Call 911 from outside. Once emergency services have cleared the home, call us and we will evaluate the HVAC system for the source of the CO — most often a cracked heat exchanger or a flue system issue. Do not re-enter the home until it has been cleared by emergency responders and the HVAC system has been inspected. If you smell gas or suspect a gas leak, go outside immediately and call 911 – this is a serious emergency that needs urgent attention from the gas company.

Can a power outage or surge damage my HVAC system in Orem?

Yes. Power surges — particularly those caused by lightning strikes, which are not uncommon in Utah Valley during summer storms — can damage control boards, variable-speed motors, and the inverter components in modern HVAC systems and ductless mini splits. If your system stopped working after a power event, call us for a diagnostic. Surge damage can sometimes appear as a simple failure to start, but the underlying component may need replacement rather than just a reset.