Blowing Cold or Lukewarm Air
The blower runs but the air never warms up, or the furnace cannot reach the temperature set on the thermostat.
Air Conditioning and Heating Specialists
Furnace Repair in Middlebury, Goshen, Elkhart, and Michiana
Furnace Not Heating? We Can Fix That.
A furnace that quits in the middle of a northern Indiana winter is more than an inconvenience. A Good Neighbor Heating & Cooling diagnoses and repairs gas and electric furnaces across the Michiana area, and our customer service line answers 24 hours a day, 7 days a week.
Our technicians work on many major furnace brands. We find the actual cause of the problem, explain what the repair involves and what it costs, and get your heat back on. You approve the work before it starts.
Signs Your Furnace Needs Repair
Furnaces usually give warning before they fail completely. Call for repair if you notice any of these:
New or Worsening Noises
Banging at startup, squealing, rattling, or rumbling that was not there before usually points to a mechanical problem.
Short Cycling
The furnace turns on and off every few minutes instead of running full heating cycles. This wastes energy and wears out parts.
Odors That Do Not Fade
A brief dusty smell at the first startup of the season is normal. A burning, metallic, or rotten-egg odor that persists is not; shut the system down and call.
Water Around the Furnace
Pooling water usually means a clogged condensate drain on a high-efficiency furnace, which is a simple fix when caught early.
Repeated Service Calls
Needing more than one repair per heating season is a sign the system is wearing out and worth a professional evaluation.
Common Furnace Problems We Repair
Most furnace breakdowns trace back to a handful of components. Our technicians repair problems like these every heating season:
Ignition and Pilot Problems
Failed ignitors, dirty flame sensors, and pilot lights that will not stay lit are among the most common reasons a furnace will not start.
Blower Motor Failures
Worn bearings, failed capacitors, and burned-out blower motors stop warm air from moving through your home.
Thermostat and Control Issues
A faulty thermostat or control board can cause no heat, constant running, or erratic temperatures even when the furnace itself is healthy.
Clogged Filters and Airflow Restrictions
A badly clogged filter makes the furnace overheat and shut itself off. We fix the immediate problem and show you how to prevent it.
Condensate Drain Clogs
High-efficiency furnaces drain condensation; when the line clogs, water backs up and can shut the furnace down.
Cracked Heat Exchangers
A safety-critical failure that can allow carbon monoxide into your home. We test for it and explain your options honestly if we find one.
What to Expect During a Furnace Repair Visit
1. We ask what you have noticed - sounds, smells, when the problem started - to narrow the search.
2. The technician inspects and tests the furnace to find the actual cause, not just the symptom.
3. You get a plain-language explanation of the problem and the cost of the repair before any work begins.
4. With your approval, we complete the repair.
5. We run the furnace through a full cycle to confirm it heats properly and safely, then clean up the work area.
Repair or Replace?
If your furnace is old enough or the repair is major, we will tell you when replacement is the smarter investment - with numbers for both options. See our furnace replacement page for what goes into that decision.
Why Call A Good Neighbor for Furnace Repair?
We have served Michiana homeowners since 1919 from our home base in Middlebury. Our customer service line answers around the clock, we service many major furnace brands, and we explain recommended work and pricing before a repair begins.
Ask about our current repair coupon when you schedule.
Furnace Repair FAQs
Why is my furnace blowing cold air?
First check that the thermostat is set to heat and the fan is set to auto rather than on. If the settings are right, the usual suspects are a dirty flame sensor, a failed ignitor, a clogged filter causing the furnace to overheat and shut down the burners, or leaking ductwork pulling in cold air. A technician can pinpoint the cause quickly.
What should I check before calling for furnace repair?
A few minutes of checking can sometimes save you a service call. Make sure the thermostat is set to heat and above room temperature, replace the air filter if it is dirty, confirm the furnace switch near the unit is on, check that the breaker has not tripped, and open any closed supply vents. If the furnace still will not heat, call us.
Why is my furnace making banging, squealing, or rattling noises?
A boom or bang at startup often means dirty burners igniting late. Squealing usually points to a failing blower belt or motor bearing. Rattling can be a loose panel or, more seriously, a failing component. New or worsening noises are worth a professional diagnosis before something small becomes a breakdown.
Why is water leaking around my furnace?
High-efficiency furnaces produce condensation that normally drains away through a small line. If that line or its trap clogs, water pools around the base of the furnace. A leaking humidifier mounted on the ductwork can also be the source. Both are usually straightforward repairs.
Why does my furnace keep turning on and off?
Rapid on-and-off operation, called short cycling, is often caused by a clogged filter, a dirty flame sensor, a thermostat problem, or a furnace that overheats and trips its safety limit. Short cycling wastes energy and wears out parts, so it is worth fixing promptly.
Is a cracked heat exchanger dangerous?
Yes. The heat exchanger keeps combustion gases separate from the air that circulates through your home. A crack can allow carbon monoxide to enter your living space. If a technician finds a cracked heat exchanger, the furnace should not run until it is repaired or replaced. Because the repair is a major one, replacement of an older furnace is often the more economical choice.
Can you fix my furnace at night or on a weekend?
Our customer service line answers 24 hours a day, 7 days a week, so you can reach us whenever your heat goes out. Call 574-825-1677 and we will get a technician scheduled.
When is it smarter to replace a furnace instead of repairing it?
If the furnace is near the end of its expected life, has needed multiple repairs in recent seasons, or the current repair is a major component like a heat exchanger or blower motor, replacement often costs less over the long run. We will give you honest numbers for both options so you can decide.
Related Heating Services
Keep your heat reliable year after year, or plan your next step:
- Furnace maintenance - annual tune-ups that prevent most mid-winter breakdowns
- Furnace replacement - when repairs no longer make financial sense
- Furnace installation - choosing and sizing new equipment
- Boiler repair - for homes with hot water or radiator heat
- Maintenance plan - repair discounts and priority scheduling