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how do i turn off my gas furnace

by Beau Lueilwitz Published 3 years ago Updated 2 years ago

Need to Turn Off a Gas Furnace? Here’s How to Do It Safely.

  • Step 1: Switch the mode on your thermostat. First things first: visit your thermostat. When it’s warm enough to open the windows, or maybe even turn ...
  • Step 2: Replace the furnace filter.
  • Step 3: Check the pilot light.
  • *Bonus* In case of an emergency….
  • Enjoy the Season!

How To Turn Off Your Furnace?
  1. Turn off the pilot light by switching the knob to the “off” position.
  2. Shut off the main gas supply to your furnace.
  3. If your hot water heater and stove are also natural gas powered, make sure that you don't switch off the gas supply to the whole house.
Mar 17, 2020

Full Answer

How do you shut off a gas furnace?

How do you turn off the gas valve on a furnace? First, turn your thermostat all the way down, so only the gas pilot light is burning. Next, locate the gas heater shut off valve. To turn the heater's gas valve off, press the on valve in, and then turn it to the off position.

Why is there a light switch next to my furnace?

  • Check the circuit breaker. Go to your breaker box and look for the breaker that powers the furnace or air conditioner.
  • Check the power switch. There is power switch on the side of the HVAC unit.
  • Change the batteries in the thermostat.
  • Test the power wire to the thermostat.

How to replace your own furnace?

  • If your furnace needs frequent repairs.
  • If your energy bills are going up despite usage staying the same.
  • If the rooms in your house are heating unevenly, with some rooms hotter or colder than others.
  • If your furnace is cycling on and off more frequently than in the past.
  • If your home is starting to have humidity problems.

More items...

How to shut off your natural gas in an emergency?

To turn off your gas:

  • Know where your natural gas meter is before there’s an emergency.
  • Find the shut-off valve. TIP: Facing your meter, you’ll see a pipe running from the ground to the meter. ...
  • Use a 12-inch or larger adjustable wrench to turn the valve 1/4 turn in either direction, until the valve is crosswise to the pipe. ...

How do I turn my furnace off?

1:262:24How To Turn Off A Furnace (Tutorial) - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo to turn the furnace off all that you have to do is flick the switch. And if your furnace isMoreSo to turn the furnace off all that you have to do is flick the switch. And if your furnace is already on then if you flick the switch.

How do I shut off the gas to my furnace?

0:164:29How to turn the gas off to a furnace. How to replace the furnace filter.YouTubeStart of suggested clipEnd of suggested clipClockwise. Until it goes horizontal. As soon as I do that. And we cross the pipe with the with theMoreClockwise. Until it goes horizontal. As soon as I do that. And we cross the pipe with the with the knob here that I'm turning with the wrench the gas is off to the furnace.

Is it OK to turn off the furnace?

It's a good idea to turn off your furnace during hot months. If left on, it will continue to consume energy. The furnace contains some electrical components like sensors that can needlessly draw power throughout the summer. If your furnace has a pilot light, it will use up unnecessary gas during summer when left on.

Is it safe to turn gas furnace off?

To uphold safety, you can turn off the gas supply to the furnace. But be careful not to turn off the gas supply to the rest of the house. You'll still need it for cooking, cleaning, heating water, and other activities in summer. It is also advisable to schedule an inspection of your home's safety systems.

Where is gas shut off valve located?

Your main shut off valve is located just before the gas meter. This is called your “street side valve”. On the inside of your house, where the pipe enters your house, you can find your “house side valve.” This ball valve is attached to a black iron pipe.

What does gas shut off look like?

Gas shutoff valves When the long side of the nub or handle is parallel to the incoming gas line, it's open and the gas is flowing. When it's turned a quarter turn, perpendicular to the incoming pipe, it's closed.

Where is the furnace power switch?

Those names are pretty self-explanatory: This is the switch used to disconnect the power to the furnace, turning it on and off as needed. Most building codes require a furnace switch or "disconnecting means" within sight of the furnace itself. It's usually mounted on the side of the furnace or a wall nearby.

How long does it take for a furnace to turn off?

This is roughly anywhere from 2 seconds to 2 minutes on and then off again. This is generally a good rule of thumb to follow. An average furnace will in fact turn off and on only a couple times in an hour. However, during these times the furnace should be lasting around 5 minutes or longer.

Do I need to turn my furnace on and off?

So, if your furnace keeps turning off and on too quickly, your thermostat might be malfunctioning or broken. There are several things that could be causing your thermostat to not work properly. The wiring could be old and need replacing, it might need new batteries, or it could be the location of your thermostat.

What happens if you turn off the furnace?

Heat constantly escapes your home when it's cold outdoors, which is why it makes sense to lower the thermostat when you're not there. But turning off the furnace in the winter—especially when you're away for long periods of time—runs the risk of frozen pipes that could easily burst when they thaw.

Why won't my furnace shut off?

If your furnace won't shut off, you likely have one of the following issues: Thermostat issue. Dirty air filter. Faulty blower.

Turning On a Gas Furnace

Locate the switch or knob that displays three settings (On, Pilot, Off).

How to Turn a Gas Furnace Off

Simply reverse engineer the previous process and set the control knob to off. Might not be a bad idea to cut power at the circuit breaker, depending on the maintenance task you are trying to perform.

Turning an Electric Furnace Off and On

This one should be super easy unless your furnace components or power supply are failing. Make sure the circuit breaker is set to on. Verify that the switch on the actual furnace is set to on. Then turn your furnace on by controlling it from the thermostat. Reverse the process on this in order to turn it off for maintenance and repairs.

Save on HVAC Supply at PlumbersStock

Now that you know how to turn on a furnace, if it's not working you might have a bigger problem. Be sure to check out all of our furnace help resources here at PlumbersStock. Feel free to browse our selection of HVAC parts like motors and blowers, furnace ignitors, blower wheels, etc.

When To Call In A Team Of Furnace Repair Professionals?

It could be a loss in terms of finance or health. The best way to protect yourself is to know when you should not do it on your own and call in a team of professionals. If any of the following is true for you, give us a call. We are ready to help you.

Should I Turn Off The Furnace In Summer?

The answer to this question requires probing the condition of your furnace and your utilities. Here are a few things to know before you can make the decision.

What to do if the pilot flame goes out?

If the pilot flame goes out when you release the button, try lighting it again and wait longer. If you still can’t get the pilot flame to stay lit without the button depressed, there’s likely something wrong with your thermocouple.

How to bypass thermocouple?

Press and hold the thermocouple bypass button (otherwise no gas will flow since the thermocouple will detect that there is no pilot flame).

Can you save money by switching to electric heating?

That’s all there is to it. If you really want to save some money, consider switching to electric space heaters. In spite of the apparent higher cost of electricity, you can save money because electric space heating is so much more efficient than combustion based central heating methods.

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