Serving La Porte, Michigan City, Valparaiso & Northwest Indiana

Furnace Repair in La Porte, IN

When your furnace stops working on a cold Indiana night, you need help fast—and you need technicians who actually know what they're doing. At Dye Plumbing & Heating, we've been repairing furnaces for families throughout La Porte, IN and Northwest Indiana since 1939. That's over 86 years of diagnosing problems accurately, making repairs that last, and getting homes warm again when it matters most.

Our NATE certified technicians bring genuine expertise to every service call. We've seen just about every furnace problem imaginable—from simple thermostat issues to complex control board failures—and we know how to troubleshoot systematically to find the real cause of your heating problems.

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Dye Plumbing & Heating Service Co. - Over 85 Years of Experience
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Expert Furnace Repair

Fast, Reliable Furnace Repair in La Porte, IN

Whether your furnace won't start, produces weak heat, makes strange noises, cycles on and off constantly, or just doesn't seem to heat your home like it used to, we have the experience and training to fix it. We service all furnace brands, carry common parts, and provide honest assessments about repair versus replacement when that conversation is necessary.

  • 86+ years of furnace repair expertise serving Northwest Indiana
  • NATE Certified technicians with advanced training
  • All brands serviced including Armstrong Air, Carrier, Lennox, and more
  • Accurate diagnosis using systematic troubleshooting
  • Google Guaranteed for your peace of mind
  • Same-day service available for urgent situations

We're not going to guess or replace parts hoping something works. We diagnose first, explain what we find, and then make the repair right.

Furnace not working? Don't wait in the cold. Visit our contact page to schedule service or call us directly.

Contact Our Team

Common Problems

Common Furnace Problems We Repair in Northwest Indiana

After 86 years of repairing furnaces in this region, we've developed deep expertise in diagnosing and fixing the issues that affect heating systems in our demanding climate. Northwest Indiana's cold winters put serious stress on furnaces, and we understand exactly what goes wrong and why.

Ignition System Problems

Modern furnaces use electronic ignition systems that can fail in several ways:

  • No ignition at all
  • Igniter glows but no flame
  • Flame ignites but goes out
  • Pilot light problems (older furnaces)

Heat Output Problems

When your furnace runs but doesn't heat properly:

  • No heat production
  • Weak or insufficient heat
  • Uneven heating throughout the home

Cycling Problems

Furnaces that turn on and off improperly:

  • Short cycling
  • Runs constantly without reaching temperature
  • Won't shut off

Blower Motor Issues

The blower motor circulates heated air:

  • Failed motors or worn bearings
  • Bad capacitors
  • Belt problems (older systems)

Strange Noises

Different sounds indicate different problems:

  • Grinding or screeching
  • Banging or rumbling
  • Excessive vibration

Electrical Problems

Control and electrical component failures:

  • Control board issues
  • Stuck relays
  • Thermostat problems

Experiencing any of these furnace problems? Our NATE certified technicians can diagnose and repair the issue. Contact us for service.

Our Process

Our Furnace Repair Process

We don't guess at furnace problems—we troubleshoot methodically to find the actual root cause. Here's how our technicians approach every repair call.

Systematic Diagnosis

We troubleshoot methodically to find the actual root cause:

  • Gather information about symptoms and recent changes
  • Check thermostat settings and operation
  • Verify power and gas supply
  • Inspect ignition sequence
  • Test safety controls
  • Check electrical components
  • Measure gas pressure
  • Identify root cause

Honest Assessment

After diagnosis, we explain what we found in plain language—not technical jargon:

  • Show you the problem if possible
  • Explain why it happened
  • Provide honest repair vs. replacement assessment
  • Give you our honest recommendation

Quality Repairs That Last

We use proper parts and proven repair techniques. We're not looking for quick fixes that fail in a few weeks—we want to solve your problem permanently.

Common Repairs

Common Furnace Repairs We Perform

Hot Surface Igniter Replacement

Modern furnaces use hot surface igniters (HSI) instead of pilot lights. These igniters glow red-hot to ignite the gas, and they eventually wear out—typically after 3-7 years of use.

Symptoms of igniter failure:

  • Furnace attempts to start but doesn't ignite
  • Visible cracks in the igniter element
  • Igniter doesn't glow when furnace calls for heat

We carry common igniters on our trucks and can usually replace them the same day.

Flame Sensor Cleaning and Replacement

The flame sensor is a small metal rod that sits in the burner flame. Its job is to confirm the burner is lit—if it doesn't sense a flame, the control board shuts off the gas valve as a safety measure.

Symptoms include:

  • Furnace lights but shuts off after a few seconds
  • Repeated ignition attempts followed by lockout
  • "Flame failure" error codes

Often, a thorough cleaning restores proper operation. When cleaning doesn't help, replacement is straightforward and affordable.

Blower Motor Service and Replacement

The blower motor circulates heated air through your ductwork. When it fails, heat builds up in the furnace and triggers safety shutoffs.

Warning signs include:

  • No air coming from vents when furnace runs
  • Unusual noises from the blower compartment
  • Furnace shutting off on limit switch

We can often repair blower issues by replacing capacitors, lubricating bearings, or addressing belt problems.

Control Board Replacement

Electronic control boards are the "brain" of your furnace, managing the ignition sequence, safety controls, and blower operation.

Board failures can cause:

  • Furnace won't respond to thermostat
  • Erratic operation or random shutoffs
  • Error codes indicating board malfunction
  • Lights on board not displaying normal patterns

We diagnose control board problems carefully because many symptoms that seem like board failures are actually caused by other components.

Gas Valve Service and Replacement

Gas valves control fuel flow to the burners. They can fail in several ways:

  • Won't open at all (no gas to burners)
  • Won't close properly (safety concern)
  • Opens partially (weak heat)

Gas valve replacement requires proper procedures to ensure safe operation. We verify proper operation after any gas valve work.

Heat Exchanger Inspection

Cracked heat exchangers are serious safety concerns—they can allow carbon monoxide to enter your home's air supply.

Warning signs include:

  • Soot or discoloration around the furnace
  • Yellow burner flames (should be blue)
  • Carbon monoxide detector alarms
  • Visible cracks during inspection

If we find a cracked heat exchanger, we recommend furnace replacement—heat exchanger repairs are generally not practical, and the safety risk is too significant to ignore.

All Brands Serviced

All Furnace Brands Serviced

We repair all major furnace brands, regardless of who installed the system or where it was purchased.

Armstrong Air

(our primary installation brand)

Carrier and Bryant

Premium brand systems

Lennox

High-efficiency systems

Trane and American Standard

Reliable heating systems

Rheem and Ruud

Value-oriented systems

And All Other Brands

Goodman, Amana, York, Coleman, Heil, Tempstar, Payne, Day & Night

Repair or Replace?

When to Repair vs. Replace Your Furnace

Not every furnace problem warrants replacement, but sometimes repair isn't the smart choice. Here's how we help you decide:

Consider replacement when:

  • Your furnace is over 15-20 years old
  • The heat exchanger is cracked (safety issue)
  • Repair costs exceed 50% of replacement cost
  • You've had multiple significant repairs in recent years
  • Efficiency has noticeably declined (higher bills, less comfort)
  • Parts for your model are obsolete or expensive

Repair usually makes sense when:

  • The furnace is relatively young (under 10-12 years)
  • The problem is a common, affordable repair
  • The system has been well-maintained
  • It's your first significant repair

Our Honest Approach

We don't push replacements to make sales—we provide honest recommendations based on what actually makes financial sense for your situation.

Sometimes we tell people their 18-year-old furnace should be replaced; other times we tell them their 20-year-old furnace has plenty of life left after a simple repair.

Our goal is to help you make the best decision for your home, your comfort, and your budget.

Safety First

Furnace Safety: What Every Homeowner Should Know

Furnaces burn natural gas and produce combustion byproducts, including carbon monoxide. While modern furnaces have multiple safety features, it's important to understand the warning signs of problems.

Carbon Monoxide Exposure

CO is odorless and colorless but deadly. Install CO detectors on every level of your home. If your detector alarms, evacuate immediately and call 911.

Gas Smell

Natural gas has a distinctive rotten-egg smell. If you smell gas, leave your home immediately, don't operate electrical switches, and call your gas company from outside.

Yellow Burner Flames

Healthy furnace flames should be blue with small yellow tips at most. Primarily yellow or orange flames indicate incomplete combustion and potential CO production.

Soot Around Furnace

Black soot near the furnace, on walls, or on ceiling registers indicates combustion problems that need immediate attention.

Your safety is our top priority in every repair we perform. We check combustion, venting, and safety controls as part of our service.

Our Service Area

Proudly Serving La Porte & Northwest Indiana Since 1939

From our headquarters at 1600 Lake Street in La Porte, IN, we serve homeowners and businesses throughout the region. Our local presence means faster response times, familiarity with area homes and building codes, and the accountability that comes from being your neighbors.

Proudly Serving Our Communities Around

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Related Services

Related Heating Services

Furnace Installation

When replacement makes more sense than repair

View Furnace Installation

Furnace Maintenance

Prevent problems before they start

View Furnace Maintenance

Boiler Repair

Service for hot water and steam heating systems

View Boiler Repair

Heat Pump Repair

Dual-function heating and cooling systems

View Heat Pump Repair

Your Questions, Answered

Frequently Asked Questions About Furnace Repair

We prioritize heating calls during cold weather and work to schedule service as quickly as possible during our business hours. Call 219-362-6251 to discuss your situation—we'll let you know our earliest availability and work to get you warm as quickly as we can.

A furnace that won't start could have several issues: thermostat problems (dead batteries, wrong settings, faulty wiring), a tripped circuit breaker, a failed igniter, a safety switch that's activated, or a control board issue. Our technicians systematically check each possibility to identify the specific cause.

Short cycling typically indicates overheating (often from a dirty filter restricting airflow), a dirty flame sensor that can't detect the burner flame, or control board problems. This symptom stresses your furnace and increases energy costs, so it should be addressed promptly.

Banging when the furnace starts often indicates delayed ignition—gas builds up before igniting, causing a small explosion in the combustion chamber. This can damage the heat exchanger over time and should be addressed. Banging from the ductwork is usually just thermal expansion and less concerning.

Based on our 86+ years of experience, we typically recommend considering replacement when furnaces reach 15-20 years old, when heat exchangers are cracked, when repair costs exceed half the replacement cost, or when you've needed multiple significant repairs recently. We'll give you an honest assessment of your specific situation.

Repair costs vary significantly depending on the problem. A simple flame sensor cleaning costs much less than a control board replacement. We provide upfront pricing before beginning any repair work, so you'll know exactly what to expect.

Yes, our NATE certified technicians repair all major furnace brands, regardless of who installed the system or where it was purchased.

Yes—a cracked heat exchanger can allow carbon monoxide to enter your home's air supply. We take this seriously and recommend immediate attention. In most cases, heat exchanger cracks mean the furnace should be replaced rather than repaired.

Regular maintenance is the best prevention. Change your filter monthly during heating season, keep vents and returns clear, and schedule annual professional tune-ups. See our furnace maintenance page for more details.

We prioritize urgent heating calls, especially during cold weather, and work hard to respond quickly during our business hours when homeowners are without heat. Call 219-362-6251 to discuss your situation.

Let's Get Your Furnace Working

Let's Get Your Furnace Working Again

When your furnace fails, you don't want to wait in the cold wondering if you called the right company. Dye Plumbing & Heating brings over 86 years of furnace repair experience to every service call throughout La Porte, IN and Northwest Indiana. Our NATE certified technicians diagnose problems accurately, explain what they find clearly, and make quality repairs that last.

What you can expect from us:

  • Honest, accurate diagnosis of your furnace problem
  • Clear explanation of repair options and costs
  • Quality repairs using proper parts and techniques
  • Fair pricing with no surprises
  • Respectful treatment of your home and your time
  • Google Guaranteed service for your peace of mind

Don't spend another night in the cold.

219-362-6251  

Why Choose Dye Plumbing & Heating

We don't guess at problems—we troubleshoot methodically to find the actual root cause.

Advanced training and certification ensures quality repairs on all furnace brands.

We provide honest repair vs. replacement recommendations based on what makes financial sense.

We check combustion, venting, and safety controls as part of every repair service.

We prioritize heating emergencies and work to respond quickly when you're without heat.

Nearly nine decades of furnace repair experience serving Northwest Indiana families.

Hours: Monday-Friday 7:00am-5:00pm | Saturday 7:30am-12:00pm

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