How to Reset a Furnace – an Easy Way

Posted by: Mas Broto
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How to Reset a Furnace

There is a simple steps on how to reset a furnace which may resolve an issues of your system and make your system working again. If your furnace overheats or encounters a similar malfunction, it would be wise to try restarting the unit first to find out if the system goes back to normal. Resetting a furnace is an easy way to save yourself a potentially unnecessary and expensive furnace repair, so always reset it before calling an HVAC technician!

In today’s post, we’d talk about how to reset a furnace and how to figure out in cases where you should call a professional. We’ll go over the correct easy steps you need to take. There’s no toolbox needed, however you need to find out the location of the furnace reset buttons.

How to Reset a Furnace – The Simple Steps

Most furnaces that are less than 20 years old can be easily reset by pressing the reset button. This steps can also be implemented for oil and/or electrical furnaces. Let’s going through the exact steps is going to take in order to reset a furnace by yourself:

  1. Press and hold the reset button for 30 seconds.
  2. Wait about 30 seconds.
  3. Press and hold the reset button again for another 30 seconds and check the furnace to see that it start working again.

The location of the furnace reset button depends on the brand and model of your exact furnace. If you have central AC system in your house, the reset button should be find on the blower motor. Read on to know how to find the furnace reset button location, click here.

You probably won’t have the option to reset the furnace by pressing the reset button, or sometimes the reset button keep tripping for some of the following reasons:

  • The furnace is overheating.
  • The flame sensor may be dirty.
  • The air filter may be dirty and blocking airflow.

Hot to Reset a Gas Furnace

If you have a gas furnace, follow these steps to reset it.

  1. Make sure the pilot light is out. If it isn’t, turn the gas control switch to off and make sure that the pilot light is out.
  2. Turn down the thermostat to its lowest setting.
  3. If the furnace has an electronic ignition, turn off the power by turning off the circuit breaker that controls the furnace.
  4. Turn off the main gas supply to the furnace (leave the pilot gas supply line on).
  5. Relight the pilot by holding a lit match or lighter in front of the pilot flame jet.
  6. Turn the power back on.
  7. Turn on the main gas supply.
  8. Raise your thermostat to the desired temperature.

If the furnace doesn’t restart, call HVAC technician to troubleshoot the furnace and determine the exact problems. Only a professional can properly identify why your furnace isn’t starting.

Do not attempt to repair and maintenance your furnace yourself without professional help to prevent injury. Also accidental damage that may occur will voids your warranty.

Now that you know How to reset a furnace, you should also consider about furnace maintenance. Maintaining your furnace is an important way to keep your home heating and cooling system working properly.

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Mas Broto

Have been in the heating and air conditioning (HVAC) industry for over 20 years. He is person that will grow and thrive to learn more about the HVAC industry throughout his career. Mas Broto is also a blogger, who's dedicated to bringing you the best knowledge to get ahead in the game of life.

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