Furnace Repair Sunnyvale

Find top Furnace Repair in Sunnyvale

Get up to 3 Furnace Repair quotes for your project today! Compare profiles, reviews, accreditations, portfolio, etc... and choose the best offer.

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  • Ai
    1
    Sunnyvale, US

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  • DunRite Heating & Air Inc.
    3.8
    Sunnyvale, US

    We are available to answer your calls everyday from 8:30 AM to 8:00 PM. As the owner of DunRite Heating & Air, Inc., my business model has evolved over the last couple of years. I believe that with the ever-changing, uncertain times that we all live in that the “business as usual” philosophy that is still held by most of my competitors is a fatal mistake. The days of high-pressure sales tactics and always trying to upsell is a 2004 way of doing business. Today is a new economic time in our country, and in order to succeed in business, a business must recognize and adapt accordingly. With that said, I am taking a personal involvement in all aspects of the company’s daily operations. You have my commitment that our appointment times will be kept, and all of our employees will be polite, courteous, and respectful of your home and property. We will always provide up-front pricing and honor the price that is given—no up-selling midway through the job. In conclusion, if DunRite Heating & Air, Inc. is fortunate enough to do whatever work you may need, you will have my personal guarantee that you, your family, and your home will be treated with absolute professionalism.

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  • Al
    4.7
    Sunnyvale, US

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  • So
    4.9
    Sunnyvale, US

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  • FA
    5
    Sunnyvale, US

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  • Ai
    4.8
    Sunnyvale, US

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  • Se
    4.9
    Sunnyvale, US

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  • Sa
    4.7
    Sunnyvale, US

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  • IR
    4.9
    Sunnyvale, US

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  • Co
    5
    Sunnyvale, 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 so you can make informed decisions.

What causes a furnace to stop working?

There are several reasons why your furnace might stop working, ranging from simple issues to more complex problems. Some of the most common causes include::
  • Lack of power: Check the circuit breaker to ensure the furnace is receiving power. A tripped breaker is a common and easily resolved problem.
  • Thermostat problems: A faulty thermostat may not be signaling the furnace to turn on. A malfunctioning thermostat requires replacement.
  • Clogged air filter: A dirty air filter can restrict airflow and prevent the furnace from working efficiently.. Try replacing the filter.
  • Ignition problems: The igniter or pilot light (in older furnaces) is responsible for lighting the burners. In newer furnaces, electronic ignition systems control this process and should be checked if there are problems.
  • Blower motor issues: The blower motor circulates air through the furnace and ductwork. A faulty motor can prevent air from circulating properly..
  • Gas supply problems (for gas furnaces): Gas furnaces require both gas and electricity to function properly. Check that there are no gas leaks.
  • Other component failures: Other components, such as the inducer motor, capacitor, or pressure switch, might be responsible.
It is typically best to avoid trying to fix the furnace on your own unless you're a qualified HVAC professional.

What is the average lifespan of a furnace?

The average lifespan of a furnace is typically 15 to 20 years. However, this can vary depending on several factors: is influenced by:
  • Maintenance: Regular maintenance can help extend the life of your furnace. Annual checkups and timely repairs can make your furnace more reliable.
  • Usage: The more frequently you use your furnace, the shorter its lifespan will be.
  • Quality: Well-built models tend to last longer.
  • Proper Installation: Correct installation is key to longevity.
An older furnace may require more repairs and cost more to operate.

What are the signs that my furnace needs to be replaced?

Indicators that your furnace may need replacement include:
  • Age: If your furnace is 15-20 years or older, it is likely less efficient and more expensive to operate.
  • Frequent Repairs: If your furnace requires frequent and costly repairs, it may be a better financial decision to replace it than to continue fixing it.
  • Increasing Energy Bills: A significant increase in your heating bills might suggest that your furnace is losing efficiency.
  • Inconsistent Heating: Uneven temperatures throughout your house could mean your furnace is no longer distributing heat evenly.
  • Strange Noises: Unusual sounds coming from your furnace, such as banging, squealing, or rumbling, can signal mechanical problems.
  • Yellow Flame: A healthy furnace flame should be blue. A yellow flame can indicate a problem with the burners or venting. A yellow flame requires immediate attention.
  • Dry Air: While not a direct indicator of malfunction, older furnaces can make your indoor air very dry.
It's important to address issues as soon as possible.

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..

What causes a furnace to stop working?

There are many potential causes of furnace failure, ranging from simple issues to more complex problems. Some of the most common causes include::
  • Lack of power: Check the circuit breaker to ensure the furnace is receiving power. Make sure the power switch near the furnace is also on.
  • Thermostat problems: A faulty thermostat may not be signaling the furnace to turn on. Try resetting the thermostat or replacing the batteries. If that doesn't solve the problem, the thermostat may need to be replaced.
  • Clogged air filter: A clogged air filter can restrict airflow and prevent the furnace from working efficiently.. Try replacing the filter.
  • Ignition problems: Issues with the igniter or pilot light can prevent the furnace from starting. A faulty igniter or pilot light may need to be cleaned or replaced..
  • Blower motor issues: The blower motor circulates air through the furnace and ductwork. A faulty motor can prevent air from circulating properly..
  • Gas supply problems (for gas furnaces): Gas furnaces require both gas and electricity to function properly. Check that there are no gas leaks.
  • Other component failures: Other components, such as the inducer motor, capacitor, or pressure switch, might be responsible.
If you cannot identify or resolve the issue yourself, contact a qualified HVAC technician for diagnosis and repair .

What is the average lifespan of a furnace?

The average lifespan of a furnace is around 15-20 years. However, this can vary depending on several factors: depends on several factors, including::
  • Maintenance: Preventative maintenance significantly impacts the lifespan of your furnace. A preventative maintenance plan can make your furnace more reliable.
  • Usage: Frequent or continuous use puts more strain on your system.
  • Quality: Well-built models are typically more durable.
  • Proper Installation: Correct installation is key to longevity.
If your furnace is over 15 years old and starting to experience frequent problems, it may be time to consider replacing it.

What are the signs that my furnace needs to be replaced?

Indicators that your furnace may need replacement include:
  • Age: If your furnace is 15-20 years or older, it is likely nearing the end of its lifespan and more prone to breakdowns.
  • Frequent Repairs: If your furnace requires constant attention, it may be a better financial decision to replace it than to keep repairing it.
  • Increasing Energy Bills: A significant increase in your heating bills could indicate that your furnace is losing efficiency.
  • Inconsistent Heating: Uneven temperatures throughout your house could mean your furnace is no longer distributing heat evenly.
  • Strange Noises: Listen for odd noises coming from the unit.
  • Yellow Flame: A healthy furnace flame should be blue. A yellow flame can indicate the presence of carbon monoxide, which is a serious safety hazard. A yellow flame requires immediate attention.
  • Dry Air: If you notice excessive dryness, a new furnace could provide increased comfort.
It's important to address issues as soon as possible.

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 at least 30 seconds, though longer is sometimes recommended for the system to fully power down.
  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..