Furnace Repair

Furnace Repair in Kansas City and Lenexa, KS

A furnace that stops working in January is not a situation that allows for a wait-and-see approach. Lutz technicians are available 24/7 across the Kansas City metro with no overtime charges, and they carry parts for all major brands on their service vehicles. With over a century of heating experience in this market, our team has diagnosed and repaired virtually every failure mode a residential gas furnace can produce.

We service all makes and models of forced-air gas and electric furnaces in Lenexa, Overland Park, Shawnee, Olathe, Prairie Village, Leawood, and across the Kansas City metro. Call (913) 631-2667 or schedule service online.

Common Furnace Problems in Johnson County Homes

Kansas City winters load residential heating systems hard, and certain failure patterns repeat themselves throughout the season. The repair calls our technicians respond to most frequently across Johnson County include:

Igniter failure: The hot-surface igniter is one of the most common single-point failures on modern gas furnaces. A failed igniter prevents the burner from lighting, leaving the blower running but delivering cold air. Most are replaced in a single visit.
Flame sensor fouling: The flame sensor verifies that the burner has lit. When the sensor becomes coated with oxidation buildup, it cannot detect the flame and shuts the furnace down after a few seconds. Cleaning or replacing the sensor resolves this quickly.
Draft inducer motor failure: The inducer motor pulls combustion gases through the heat exchanger before the burner fires. A failing or seized inducer prevents the furnace from starting the ignition sequence at all.
Limit switch trips: The high-limit switch shuts the furnace down if the heat exchanger reaches an unsafe temperature, usually due to restricted airflow from a clogged filter or blocked return. Addressing the root cause is essential, not just resetting the switch.
Cracked heat exchanger: A cracked heat exchanger allows combustion gases, including carbon monoxide, to enter the airstream. This is a safety issue requiring immediate attention. In most cases, a cracked exchanger on an older furnace makes replacement the right decision.
Control board and electrical failures: Faulty control boards, failed capacitors on the blower motor, and wiring issues all fall within our diagnostic and repair scope.
Gas valve problems: A failed gas valve prevents the burner from receiving fuel. This is diagnosable with the right test equipment and typically requires component replacement.

The Lutz Furnace Repair Process

When you call Lutz for a furnace repair, here is what happens. A technician arrives and starts with a systematic diagnostic, not a quick glance followed by an estimate. We trace the failure to its source before recommending any work. Once the diagnosis is complete, we provide a written quote for your approval. No work begins without it.

Most common repairs are completed on the first visit. If a part is not on the truck, we tell you the timeline clearly. After the repair is done, we run the system through a full heating cycle, verify operation, and check for anything else that looks like it is developing.

We do not upsell replacement when repair is appropriate. If your system is repairable and the cost is reasonable relative to its remaining useful life, we will fix it and tell you so.

When Repair Is Right and When Replacement Makes More Sense

Most furnace repairs are worth making, especially on systems under 12 to 15 years old. The exceptions are situations where the repair cost approaches or exceeds the value of continued service from that system, or where a safety issue like a cracked heat exchanger makes continued operation inadvisable.

Specific situations where replacement is usually the better call:

The heat exchanger is cracked. Replacing it on a furnace over ten years old costs more than a new system and does not address aging blower motors, igniter, and control boards.
The furnace is over 18 years old and the repair estimate is $600 or more.
The system has required two or more significant repairs in a single heating season.
The unit has an AFUE rating below 80% and the home has high heating costs relative to its size.

When replacement is the right call, we transition directly to an installation consultation. No pressure, no hard close.

Protect Against Repeat Failures with Annual Maintenance

Many of the furnace repair calls we receive in December and January are preventable. The Lutz Loyalty Club includes an annual fall heating tune-up, priority scheduling during peak season, and member pricing on any parts and labor. A maintenance visit each fall catches the failure patterns before they become emergency calls.

Frequently Asked Questions

My furnace is blowing cold air. What is causing it?

Cold air from a running furnace is almost always a burner or ignition problem: a failed igniter, a fouled flame sensor, or a gas valve issue preventing the burner from lighting. It can also result from an overheated heat exchanger tripping the limit switch, which in turn is often caused by a clogged air filter. Check your filter first. If the filter is clean and the system still blows cold, call for service.

My furnace turns on and off repeatedly without heating the house. What does that mean?

Short cycling, where the furnace starts and stops in quick succession rather than completing a full heating cycle, indicates one of several problems: a tripping limit switch (often caused by restricted airflow), an oversized furnace that heats the space too quickly, a failing flame sensor that cannot hold the burner lit, or a pressure switch problem affecting the draft inducer. Short cycling stresses the heat exchanger and should be diagnosed promptly.

What does a cracked heat exchanger mean, and is it dangerous?

A cracked heat exchanger is a serious safety issue. The heat exchanger separates the combustion gases from the air circulated through your home. A crack in that barrier can allow carbon monoxide to enter your living space. If a technician identifies a cracked exchanger, the furnace should be shut down until the exchanger is replaced or the system is replaced. This is not a repair to defer.

How quickly can Lutz respond to a furnace repair emergency in Lenexa?

We provide 24/7 emergency service with no overtime charges. Response time depends on current demand, but we prioritize emergency heating calls during cold weather. Call (913) 631-2667 any time.

How much does a furnace repair typically cost in the Kansas City area?

Common repairs like igniter replacement, flame sensor cleaning, or a new capacitor typically run $150 to $350. More involved repairs involving a draft inducer motor, control board, or gas valve typically range from $300 to $700. We provide a written quote after the diagnostic visit and before any work begins. No surprise charges.

My furnace is making a banging noise when it starts. What is that?

A loud bang or boom at startup is often caused by delayed ignition: gas builds up in the combustion chamber before igniting, producing a small pressure wave when it finally lights. Common causes are a dirty burner, a failing igniter, or a gas pressure issue. This is not a problem to ignore, as repeated delayed ignitions can stress and eventually crack the heat exchanger.

Does Lutz service all furnace brands?

Yes. We service all major residential furnace brands including Carrier, Trane, Lennox, Rheem, Ruud, Goodman, American Standard, Bryant, York, and others common in the Johnson County market. We carry the most frequently needed parts for these brands on our service vehicles.

Should I repair or replace a 15-year-old furnace?

It depends on the nature of the repair. If it is a minor component like a flame sensor or igniter, repair is likely cost-effective even at 15 years. If the repair involves a draft inducer motor, control board, or heat exchanger, the economics shift toward replacement, especially if the system is approaching 80% AFUE or lower. We will give you an honest cost-benefit assessment based on the specific repair, system condition, and remaining useful life, and you decide. See our furnace installation page for more on the replacement decision.