Furnace Repair

When a furnace stops working, a repair becomes urgent fast. Greensboro winters aren’t the harshest in the country, but nighttime temperatures regularly drop into the 20s and 30s from December through February, and a home without reliable heat can turn uncomfortable, then genuinely unsafe, within a matter of hours. Berico provides furnace repair throughout Greensboro, Burlington, Eden, High Point, and the surrounding Triad, with technicians available 24 hours a day, 7 days a week, 365 days a year for problems that can’t wait until morning.

Furnace repair covers the diagnosis and correction of problems with an existing heating system, from a furnace that won’t turn on at all to one that’s running but not keeping the house warm. Berico’s technicians have repaired heating equipment throughout the Triad since 1924, and that work spans electric furnaces, gas furnaces, propane furnaces, and oil furnaces alike.

Signs Your Furnace Needs Repair

A furnace rarely fails without warning first. Most breakdowns are preceded by one of a handful of symptoms, and catching them early is usually the difference between a quick repair and a much bigger one.

• No heat at all. This is the most obvious sign something is wrong, and it often traces back to an ignition failure. The igniter is responsible for lighting the burners each time the furnace calls for heat, and like any component that fires repeatedly over years of use, it wears down and can eventually fail to light the system at all.
• Insufficient heat. This is different from no heat at all, and it’s easy to dismiss because the furnace still seems to be working. A clogged air filter restricting airflow, a malfunctioning thermostat giving the system bad information, or a blower motor that’s lost some of its strength can all leave a furnace running without actually keeping up with the house.
• Unusual sounds during operation. A furnace that’s still producing heat while making strange noises is easy to ignore, and that’s a mistake. Loud banging during startup often points to delayed ignition, where gas builds up briefly before catching. A persistent squeal usually comes from a worn blower motor bearing or a slipping belt. Neither tends to improve on its own.
• Short cycling. A furnace that’s working correctly runs a full heating cycle before shutting off. One that turns on and off repeatedly within a short span is often responding to a safety shutoff triggered by restricted airflow, a dirty flame sensor, or a thermostat that isn’t reading the room accurately.
• A blinking light or error code with no response from the system. Most modern furnaces include a control board with a diagnostic LED that blinks in a specific pattern when something has gone wrong. Homeowners don’t need to decode the pattern themselves. A technician can read the code and go straight to the likely cause instead of starting the diagnosis from scratch.

If you’re noticing any of these, the right first step is calling Berico and getting a trained technician out to look at the system before a manageable issue becomes a full breakdown.

Heat Exchanger Problems Can’t Wait

A cracked heat exchanger is the one furnace problem that should never be left for later. The heat exchanger’s job is to separate combustion gases like carbon monoxide from the air that actually flows through your home’s ducts. Years of repeated heating and cooling cycles can fatigue that metal, and when it cracks, dangerous combustion gases can mix into the air your family breathes.

A carbon monoxide alarm that keeps sounding is the clearest sign of a heat exchanger issue, and it should never be ignored. Shut off the furnace immediately and don’t turn it back on until a professional has inspected it. Soot building up around the unit and a persistent burning smell whenever the furnace runs are two other warning signs worth taking seriously, even without an alarm going off.

Furnace Repair for Every Fuel Type

Furnace repair looks a little different depending on what fuels the system, since each type points a technician toward a different set of components.

Fuel Type	Common Failure Symptoms	Primary Repair Focus
Gas	No heat, delayed ignition (banging at startup)	Ignition system and gas valve
Propane	No heat, weak or delayed ignition, fuel delivery interruptions	Ignition system, gas valve, and propane supply
Electric	No heat, insufficient heat, staged heating failure	Heating elements and sequencer
Oil	Soot, poor ignition, furnace won’t stay lit	Burner assembly and fuel nozzle

Because Berico also delivers propane and heating oil throughout the Triad, our technicians are just as comfortable diagnosing an oil or propane furnace as the natural gas systems that are more common on a typical Greensboro street.

What to Expect During a Furnace Repair Visit

A furnace repair visit starts with diagnosis, not guesswork. A Berico technician checks the components most likely to explain the symptom you called about first, whether that’s the igniter, the flame sensor, the blower motor, or the control board, and confirms the actual cause before recommending a fix. You’ll hear what’s wrong, what it will take to correct it, and what to expect afterward before any repair work begins.

Some repairs are straightforward once the cause is confirmed, like replacing a worn igniter or a failed capacitor. Others take more time, particularly if a part has to be ordered for an older or less common furnace model. Either way, the goal is the same: leave the system running the way it was designed to, not just patched well enough to get through the night.

Why Furnace Problems Show Up in the Triad

The Piedmont Triad’s winters are short, but they still put real stress on a furnace that sits mostly idle the rest of the year. A furnace that hasn’t run since the previous winter doesn’t announce its wear and tear in the spring or summer. The first sustained cold snap of the season is often what finally exposes a worn igniter, a weakening blower motor, or a control board that’s been degrading quietly for months.

Older housing stock throughout Greensboro and the surrounding area adds another layer to this. Furnaces and ductwork in older homes were frequently installed or retrofitted well after the house was originally built, which can mean tighter equipment closets or duct runs that restrict airflow more than a system installed in new construction would. Our technicians take that history into account when diagnosing a repair, since the furnace itself isn’t always the whole story.

What Our Technicians Say

“Most of the furnace calls we run in January aren’t total breakdowns. They’re units that have been struggling for weeks. By the time someone calls us, they’ve usually noticed the short cycling or the weak airflow for a while and hoped it would sort itself out. It usually doesn’t.”

Darrel Honeycutt, Berico HVAC Technician

Furnace Repair Questions

How much does furnace repair cost?

Furnace repair cost depends on which component has failed, how available the replacement part is for your furnace’s age and fuel type, and whether the issue is isolated or a sign of broader wear elsewhere in the system. Berico can provide a specific estimate once a technician has diagnosed the actual problem.

What does a blinking light on my furnace mean?

It means the furnace’s control board has detected a fault and is displaying a diagnostic code through its LED. The specific pattern points to a specific issue, and a technician can read that code on-site to speed up the repair instead of troubleshooting from the beginning.

Is it safe to keep running a furnace that’s making unusual noises?

It depends on the noise. A furnace can sometimes keep running safely for a short period with a minor squeal, but banging, especially at startup, can be connected to a delayed ignition issue and shouldn’t be ignored. When in doubt, it’s worth having a technician take a look before continuing to run the system.

How long does furnace repair take?

Many common repairs, like replacing an igniter or a capacitor, can be completed in a single visit. More involved repairs, such as a heat exchanger replacement or a control board issue, may take longer or require a return visit if a part needs to be ordered.

Can an older furnace still be repaired?

In most cases, yes. Whether repair continues to make sense depends more on how often the furnace is breaking down and whether parts are still reasonably available than on age alone. A technician can walk through your specific system’s condition and repair history to help you decide.

Does Berico repair oil and propane furnaces, or only gas systems?

Berico repairs electric, gas, propane, and oil furnaces throughout Greensboro, Burlington, Eden, High Point, and the surrounding Triad.

Call Now to Get Started

Don’t wait another moment to schedule your heating repair appointment. All the HVAC repair work performed by Berico is held to the same standard, so your furnace can be expected to perform reliably once the fix is complete. If your furnace is older or has needed several repairs recently, our technicians can also help you weigh whether a furnace replacement makes more sense, and we install new systems when that’s the better path forward. Reach out today to learn more.