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How To Reset a Furnace: A Step-by-Step Guide

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The furnace in your home is how you stay warm and comfortable when outside temperatures drop. Most furnace systems are equipped with a reset feature designed to shut the furnace down quickly when potentially serious problems occur. If this important safety feature activates or “trips” frequently, it might mean the furnace is overheating and in need of professional attention.

Today, we’ll discuss reasons why you might need to reset your furnace, how to reset it, and when to call for professional assistance.

Signs You Need To Reset Your Furnace

The furnace reset feature is designed to keep you in control of your furnace. It’s a protective measure to ensure that the furnace doesn’t come back on if it’s overheating or leaking fuel, which could be dangerous to you and your family. Some situations in which you might need to reset your furnace include: 

  • Power outages and surges
  • Frequent short cycles (meaning the unit starts and stops quickly without doing its job)
  • Persistent error codes

How To Reset Your Furnace

Each furnace unit comes equipped with a furnace reset button. When the reset feature trips, it’s usually a simple DIY task to reset it. If, for any reason, you feel uncomfortable doing this, call the pros at Cassell Brothers.

Follow these steps to reset the unit:

  1. Turn off the power at the circuit box, or make sure the main gas supply is off.
  2. Lower the thermostat to its lowest setting.
  3. Find the reset button. It’s usually yellow or red and located inside the furnace’s blower compartment.
  4. Press and hold the reset button for about 30 seconds.
  5. Turn the power or gas supply back on.
  6. Observe to ensure your furnace was successfully reset

Turn off the gas switch before attempting to reset your furnace

When To Call a Professional

Though your furnace’s reset feature is designed for ease of use, there may be times when the results aren’t what the average homeowner might be equipped to handle. In those cases, it’s best to call a qualified, knowledgeable furnace service provider for help. Instances where you might need furnace service include:

  • The reset didn’t work
  • Frequent resets are needed
  • Error codes continue
  • Strange noises coming from your furnace
  • If you have any safety concerns (such as gases leaking)

Why Cassell Brothers?

At Cassell Brothers Home Services, we’ve provided the Midlands with superior furnace services since 2008. We’re a family-owned and -operated company with over 60 combined years of experience handling furnace challenges of all kinds. See us for 24/7 emergency service and technicians who are licensed, bonded, and insured. Count on us for 100% guaranteed satisfaction and results you can trust for years.

To learn more about furnace services from Cassell Brothers Home Services in the Midlands area of South Carolina, call 803-732-9669 or fill out a contact form online, and we’ll be with you shortly!

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