Why Would a Furnace Run for an Hour and Kick Off Fo 2 Min and Run Again All Day Long?

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Resetting a furnace is a simple and straightforward fashion to fix simple problems with your heating. It involves turning the power to your furnace off, checking the bones elements of the furnace, and waiting a piffling bit before turning the power back on. Most frequently, problems with your furnace stem from bug with the filter or airplane pilot light, both of which tin be resolved during a reset. Resetting your furnace is an easy style to salvage yourself a potentially unnecessary and expensive repair nib, so always reset it earlier calling a repair company!

1. 1

   Flip the light switch on the side of your furnace. Almost every furnace has an electrical component. Fifty-fifty gas furnaces use electricity to power the fan and motor. Outset by shutting off your furnace'south electrical components. Expect on the outside sides of your furnace for a calorie-free switch. Flip that switch to shut down ability to the furnace'southward fan and motor.^[1]

   • Some really old furnaces won't accept a switch. If your furnace doesn't have a switch, just ignore this stride and move on to turning off the breaker.
   • The light switch volition typically take a faceplate and an electric box to business firm the wires, only like a regular outlet.
   • If you flip the switch and your furnace kicks on, y'all were probably trying to troubleshoot the furnace when it was off!

2. 2

   Plough the furnace's breaker off past flipping the switch on your fuse box. Become to your edifice's fuse box and find the room where your furnace is installed. Flip all of the switches for the room to the off position then that electricity for the room is close off. This volition ensure that all electric inputs and background processes are off.^[2]

   • If your fuse box is unlabeled, only flip all of the breakers off. Other than the food in your refrigerator getting a little warm, you aren't going to cause any harm past leaving the breakers off for a little flake.

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3. iii

   Look 5 minutes for all electrical components to fully shut off. The computers in some older furnaces can be quite rudimentary. Wait at least 5 minutes to ensure that all of the electrical components have fully shut down.^[3]

   • Some furnaces have a minimum time threshold for resetting the electric settings, and waiting at least 5 minutes ensures that this threshold is met.

4. 4

   Open or slide the front panel off of your furnace. On the front of your furnace, there is a removable console. With your furnace's electrical components still off, remove the panel by either lifting it out of the slot, or pinching the slides on the console inward and pulling it out. Some furnaces have 2 removable panels on the front that y'all'll need to remove.^[4]

   • To make up one's mind which console is removable, await in the corners of each panel. One of the will be screwed or soldered into the body of the furnace. The other i can exist removed.

   Tip: To figure out which side of your furnace is the front end, await for the brand proper noun or company logo of the furnace'due south manufacturer. Furnace companies always put their information on the front.

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1. one

   Pull out the air filter to come across how dingy information technology is. While your furnace is off and the door is open up, look for a flat cardboard or plastic frame that occupies a slot between the side, top, or bottom of your furnace and a vent. This is your filter. Pull information technology out and cheque the filter for excessive dirt. If necessary, you can supersede or clean your furnace filter.^[5]

   • If your filter has a cardboard frame, it is disposable. If it has a plastic frame, it is reusable.
   • Make clean a plastic filter with warm water and a clean cloth. Supersede disposable filters by buying a filter that is the aforementioned size as the original and sliding it in. The dimensions for a dispensable filter are always printed on the side of the frame.
   • If you lot are troubleshooting a problem, a dirty or clogged filter is one of the most mutual causes for poor airflow or heat.

2. 2

   Read the oil tank's gauge on an oil furnace to make certain that it's filled. If you accept an oil furnace, wait at the top of your tank for a small glass or metal gauge with numbers on it. Information technology is usually affixed to ane of the pipe connections on top. This is the oil gauge. If the needle or line on the gauge is in the ruby-red, you need to refill the oil on your tank.^[6]

   • To refill the tank, go outside to the access piping and unscrew the cap on the top. Utilise a funnel to fill up it with your specific brand of heating oil.
   • This is typically a service that homeowners pay their heating company to perform for them, since you have to exist in possession of a large amount of heating oil.
   • In an emergency, you can use a few gallons of diesel fuel instead of oil to heat your abode.

3. 3

   Prepare your thermostat to boot the heater on when it restarts. On your thermostat or control unit, turn the heat upward so that the furnace will boot on when y'all restart it. In other words, if it is lxx °F (21 °C), set your thermostat to at to the lowest degree 75 °F (24 °C). If it is 80 °F (27 °C), set your thermostat to 85 °F (29 °C). This way you won't have to worry about the temperature sensors on your thermostat interfering with your reboot.^[seven]

   • Make certain that your command unit is set to "heat," and not "cool" or "auto." If you set the temperature on your thermostat to plow the furnace on, it won't practice anything if it'due south not turned to "heat."
   • You'll have to do this subsequently yous plow the furnace back on if you have a digital control unit.

4. 4

   Brand sure that your filter is secure and close the front panel. Once y'all've inspected the inside of the panel, check that the filter is securely in place before closing the front panel. Lift the console up and fit it into its original position. Lock the console if it has sliders by pulling them out once the panel is resting in identify.^[eight]

   Tip: Your furnace volition not starting time if the panel is off. There is a safety switch on the side where your console meets the frame of the furnace. The pressure from the panel keeps it pressed down, just when you remove the panel, information technology automatically pops and cuts power. Record it down with a small piece of tape if you demand to make repairs with the panel off when the ability is on.

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1. 1

   Flip the furnace'southward breaker back on. Beginning by flipping the billow for your furnace's room. Check the other light switches and appliances in your room to ensure that electricity is flowing to every office of the room. Wait ten-15 seconds.^[nine]

   • If you lot flipped the principal breaker, ignore the room-specific breakers and just flip the chief.

2. 2

   Turn the electricity to your furnace back on and wait 30-45 minutes. Once you've confirmed that the electricity in the room is working, flip the switch for the power on your furnace and wait xxx-45 seconds for it to plow on. You should hear the motor and the fan kicking on in nether a minute.^[x]

   • The older a furnace is, the longer it may accept for it to start.
   • If your furnace doesn't do annihilation, cheque the thermostat again to make sure that your furnace is getting accurate information from the control.

3. 3

   Notice your pilot light if you take one to brand sure that it is lit. Find your pilot calorie-free by looking for a metal tube running from your gas valve to the bottom of your furnace. Bend or lay downwardly and inspect the stop of the tube to see if in that location is a small flame coming out of information technology. If you don't come across a minor flame emitting from the pipe, press the priming button on the gas valve or turn the dial to "pilot" and wait xx-45 seconds before lighting the finish of the pipe with a long lighter or match.^[eleven]

   • The small button or dial adjacent to the pilot lite opens the valve to release a picayune gas. It takes a few seconds to go enough gas in the piping to first the pilot light.
   • Newer furnaces don't have pilot lights.
   • Tape down the safety switch temporarily if you need to keep the panel open up to prime the furnace.

   Warning: Do not relight your pilot light if you lot hear or odour gas coming out of the tube earlier you push button the button to prime number the gas. This may be an indication that the valve on your pilot light needs to exist replaced, and requires a professional to analyze.

4. 4

   Cheque the diagnostic sight drinking glass or control unit. On low-tech furnaces, there is a sight glass on the front end of the furnace. This is a glass cover that is anywhere from 1–iv inches (2.v–10.2 cm) broad and allows you to look inside of your furnace to view the diagnostic lite. On a newer furnace, at that place may be an electrical console that gives readings. Inspect both of them in one case your furnace is running to make sure that the diagnostic reading is clear.^[12]

   • On older furnaces, a steady green low-cal is usually the diagnostic sign for all-clear. Newer control units volition either read "ready," "on," or "clear."
   • On every furnace with a diagnostic unit, there is a slice of paper taped to the inside of your removable console. This piece of paper contains the glossary for diagnostic codes. Use this sheet if you have a blinking light or non-light-green colour showing on the diagnostic unit.

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