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Nov 13, 2013 · By removing the flame sensor and cleaning it, you can get your furnace to cycle properly. Turn off the power to your furnace before you remove the flame sensor and turn it back on after...
- 4 min
- 1.8M
- FIX IT Home Improvement Channel
Feb 16, 2009 · How to clean and check the flame sensor on a furnace. If you have a furnace that is cycling on and off too fast, you may have a flame sensor that needs to be cleaned.
- 3 min
- 694.2K
- FIX IT Home Improvement Channel
Oct 11, 2017 · How To Clean a Flame Sensor - Furnace Troubleshooting - YouTube. Benjamin Sahlstrom. 426K subscribers. 2.4K. 224K views 6 years ago. My Favorite Tool: https://amzn.to/3NIFJuO Emery Cloth:...
- 3 min
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- Benjamin Sahlstrom
- Overview
- Cutting Power and Removing the Panel
- Inspecting Your Unit
- Rebooting the Furnace
Resetting a furnace is a simple and straightforward way to fix simple problems with your heating. It involves turning the power to your furnace off, checking the basic elements of the furnace, and waiting a little bit before turning the power back on. Most often, problems with your furnace stem from issues with the filter or pilot light, both of wh...
Flip the light switch on the side of your furnace.
Almost every furnace has an electrical component. Even gas furnaces use electricity to power the fan and motor. Start by shutting off your furnace’s electrical components. Look on the exterior sides of your furnace for a light switch. Flip that switch to shut down power to the furnace’s fan and motor.
Some really old furnaces won’t have a switch. If your furnace doesn’t have a switch, simply ignore this step and move on to turning off the breaker.
The light switch will typically have a faceplate and an electrical box to house the wires, just like a regular outlet.
If you flip the switch and your furnace kicks on, you were probably trying to troubleshoot the furnace when it was off!
Turn the furnace’s breaker off by flipping the switch on your fuse box.
Pull out the air filter to see how dirty it is.
While your furnace is off and the door is open, 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 it out and check the filter for excessive dirt. If necessary, you can
If your filter has a cardboard frame, it is disposable. If it has a plastic frame, it is reusable.
Clean a plastic filter with warm water and a clean cloth. Replace disposable filters by buying a filter that is the same size as the original and sliding it in. The dimensions for a disposable filter are always printed on the side of the frame.
If you are troubleshooting a problem, a dirty or clogged filter is one of the most common causes for poor airflow or heat.
Read the oil tank’s gauge on an oil furnace to make sure that it’s filled.
Flip the furnace’s breaker back on.
Start by flipping the breaker for your furnace’s room. Check the other light switches and appliances in your room to ensure that electricity is flowing to every part of the room. Wait 10-15 seconds.
If you flipped the main breaker, ignore the room-specific breakers and just flip the main.
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 30-45 seconds for it to turn on. You should hear the motor and the fan kicking on in under a minute.
The older a furnace is, the longer it may take for it to start.
- 85.6K
By understanding why the furnace flame sensor is crucial to the unit’s operation, you’ll be better prepared to recognize when a flame sensor is bad. Our guide will walk you through cleaning the sensor and furnace flame sensor replacement.
Dec 22, 2023 · Check Your Results. If the unit takes a few extra seconds to start up or the fan immediately kicks on and runs for a bit, this is normal. Shutting down the power to the unit can cause it to reset and run through a short series of checks before trying to fire again.
People also ask
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Aug 27, 2021 · The process of cleaning the flame sensor is easy. Simply shut off the power to the furnace, remove the flame sensor, clean it, and put it back. If the flame sensor is damaged, consider replacing it entirely.
