Furnace Repair O'Fallon

Top 10 Heating Repair in O'Fallon

Get 3 FREE Furnace Service quotes for your project today! Compare profiles, reviews, accreditations, portfolio, etc... and choose the best deal.

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  • NOOTER St. Louis
    4.6
    1500 South 2nd St., St. Louis, 63104, US

    NOOTER is a fully integrated turnkey construction, multi-craft, construction engineering and maintenance contractor, in the industrial and commercial sectors. With vast experience, a highly-skilled multi-craft labor force and unlimited geographical reach, we respond in real-time to vital projects or emergency situations, when and wherever needed. Our goals are your goals: to achieve and maintain outperforming production environments for the life of your facility.

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  • Emerson
    3.8
    St. Louis, US

    Emerson is a global technology, software and engineering powerhouse driving innovation that makes the world healthier, safer, smarter and more sustainable.

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  • Aire Serv of St. Louis
    5
    Not Found, St. Louis, 63101, US

    Aire Serv of St. Louis is a locally owned and operated HVAC company serving the St. Louis, MO area. We are dedicated to providing expert service, upfront pricing, and 24/7 customer service. Our team of experienced technicians is committed to delivering reliable and efficient HVAC solutions for both residential and commercial customers. We offer a wide range of services, including AC repair, heating repair, maintenance, and installation. At Aire Serv, we believe in the Neighborly Done Right Promise™, ensuring that our customers receive the highest quality service and support.

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  • Welsch Heating & Cooling
    4.5
    St. Louis, US

    FAMILY AND LOCALLY OWNED SINCE 1895. We strive to be the most TRUSTED Heating and Air Conditioning Company in the St. Louis/St. Charles area with over 127 years of experience. 24-hour service, 7 days a week. Repair, optimize, or check your system. Any Brand, Any System. We service all brands! Request Service Request Estimate. Specials on Heating and Cooling Complete Systems. Save up to $1,600 back! Specials. Get it Fixed By Expert Technicians. Call anytime for home or business! Services. Living Up to Our Commitment. See what made us a national winner! Reviews. What We Offer.

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  • Meyer Heating and Air
    4.9
    11134 Lindbergh Business Ct, St. Louis, 63123, US

    Meyer Heating and Air is a St. Louis-based HVAC company that provides expert services for residential and commercial properties. With years of experience in the industry, our team works on all makes and models of heating and cooling systems, offering installation, repair, maintenance, and general service. We help our customers in O'Fallon and surrounding areas, including Fenton, Arnold, Ballwin, St. Charles, Chesterfield, Sappington, and St. Louis, to ensure their HVAC systems run smoothly and efficiently. Our 24/7 emergency service means we're always available to help, and our team is dedicated to providing exceptional customer service and ensuring customer satisfaction.

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  • St
    5
    St. Louis, US

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  • Bi
    4.5
    St. Louis, US

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  • Ai
    5
    St. Louis, US

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  • Ho
    4.9
    St. Louis, US

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  • Harster Heating & Air Conditioning
    4.5
    St. Louis, US

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Frequently Asked Questions about Furnace Repair

Having problems with your heating system? Get answers to common questions about furnace repair and find trusted local technicians.

How often should I change my furnace filter?

It's recommended to change your furnace filter at least quarterly, or more often if you have pets, allergies, or live in a dusty area. A clean furnace filter improves indoor air quality and keeps your system running efficiently. Check your filter monthly and change it as needed.

What is the difference between a single-stage and two-stage furnace?

Single-stage and two-stage furnaces differ in their heating output capabilities:
Single-stage furnaces have only one setting, they either operate at 100% or are off. This can lead to uneven heating and fluctuating bills because the temperature fluctuates more than with two-stage furnaces.
Two-stage furnaces offer two levels of heat output: a lower setting for mild weather and a higher setting for colder temperatures. They work by running at a lower speed most of the time and switching to high speed when necessary.Two-stage furnaces provide enhanced home comfort and energy savings compared to single-stage models.

How do I reset my furnace?

If your furnace isn't working correctly, a simple reset can sometimes resolve the issue. Here's how to reset most furnaces:
  1. Turn off the furnace: Set the thermostat to the 'off' position.
  2. Turn off the power: Locate the circuit breaker for your furnace and switch it off.
  3. Wait: Wait a few minutes for the system to reset.
  4. Turn the power back on: Flip the circuit breaker back to the 'on' position.
  5. Turn on the furnace: Turn the thermostat back on and set it to your desired temperature.
If the problem persists or if you encounter error codes, it's best to call a qualified HVAC technician for diagnosis and repair..

Why is my furnace making strange noises?

Unusual sounds from your furnace can indicate a variety of problems, from minor issues to major malfunctions. :
  • Banging or popping: Could indicate dirty burners, delayed ignition, or expanding ducts.
  • Squealing or screeching: Often indicates an issue with the blower motor or the inducer motor.
  • Rumbling or vibrating: Might suggest a loose or damaged component or a problem with the burner.
  • Clicking: May be caused by a faulty igniter, control board, or other electrical components. Electrical issues can be hazardous, so contact a professional.
  • Whining: Often caused by a problem with the blower motor or inducer motor.
If your furnace is making unusual sounds, it is best to have the system inspected. Ignoring unusual sounds can lead to further damage or costly repairs down the road.

How often should I change my furnace filter?

It's recommended to change your furnace filter at least quarterly, or more often if you have pets, allergies, or live in a high-pollution area. Regularly replacing filters is simple and helps prevent many furnace problems. A clogged filter makes your furnace work harder, wasting energy and shortening its lifespan.

What is the difference between a single-stage and two-stage furnace?

Single-stage and two-stage furnaces have operational differences.
Single-stage furnaces have only one setting, they either operate at 100% or are off. This may cause temperature fluctuations and higher energy bills because the furnace is either running at its maximum setting or completely off..
Two-stage furnaces can run at both low and high speed. This allows the furnace to modulate its output based on the actual heating demand, resulting in more consistent temperatures, quieter operation, and improved energy efficiency.Two-stage furnaces provide enhanced home comfort and energy savings compared to single-stage models.

How do I reset my furnace?

Before calling for repairs, consider resetting your furnace. Here's how to reset most furnaces:
  1. Turn off the furnace: Set the thermostat to the 'off' position.
  2. Turn off the power: Locate the circuit breaker for your furnace and switch it off.
  3. Wait: Wait a few minutes for the system to reset.
  4. Turn the power back on: Flip the circuit breaker back to the 'on' position.
  5. Turn on the furnace: Turn the thermostat back on and set it to your desired temperature.
If the problem continues or if you encounter error codes, it's best to call a qualified HVAC technician for diagnosis and repair..

Why is my furnace making strange noises?

Strange noises from your furnace can indicate a variety of problems, it's important to pay attention to these sounds to identify potential issues early on:
  • Banging or popping: Could be due to dirty burners, delayed ignition, or expanding ducts.
  • Squealing or screeching: Often a sign of a problem with the blower motor or other moving parts.
  • Rumbling or vibrating: Check for loose parts or components.
  • Clicking: May be from the igniter, but it can also come from other electrical problems If the clicking sound is persistent, it is best to contact an HVAC technician.
  • Whining: Often caused by a problem with the blower motor or inducer motor.
If your furnace is making strange noises, recommended to contact a qualified HVAC technician for diagnosis and repair. Ignoring unusual sounds can lead to further damage or costly repairs down the road.