Even though some people confuse boilers with furnaces, the two appliances are nothing alike. Many households have gas or oil furnaces as central heating systems. Even though the appliances are quite the power horses, the risk of some issues in time is never null. Professionals recommend troubleshooting and resetting the furnace to solve the problems. If you have a Lennox furnace, you need to start by finding the reset button.
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Lennox is one of the most reputed brands that develop some of the most innovative and impressive HVAC systems. It also provides the most advanced heating systems, such as air conditioners, furnaces, etc.
A Lennox furnace presents cutting-edge technology, fantastic engineering, and excellently-absorbing insulation. Lennox furnaces are highly appreciated for their sound absorption and silent operation.
The reset button on a Lennox furnace is located on the ignition control panel. The reset button presents a label (“Reset”); you can easily spot it as it’s written in bold letters. You can also check out the furnace’s manual to discover the location of the reset button.
If you look for a reset button on the furnace, you are likely experiencing some issues with the furnace. We recommend you learn a thing or two about the reset button’s functions before operating it.
How to reset the Lennox furnace
Resetting a furnace resembles rebooting a computer. As we’ve mentioned, finding the reset button on a Lennox furnace is not complicated. Always start by turning off the power supply before looking for the furnace’s reset button. It’s an essential step to take on for safety.
After you turn off the furnace, you should proceed to do the following steps:
- Identify and expose the control panel of the furnace
- Look for a raised button (typically, it’s a red button on the ignition control panel)
Note
Many furnaces present a diagnostic light that will start to flash when detecting a problem. Read the instructions inside the panels to discover the meaning of the flashing of the diagnostic light.
Here are the steps to take to reset your Lennox furnace (in detail):
1. Turn off the power switch to the furnace
Begin with turning off the power on the furnace. The power switch should be on the control panel’s side. It looks a lot like a wall light switch. Continue with examining the circuit breaker. Look for the button that relates to the furnace and take it to the “Off” position.
2. Remove the furnace’s front panel
use a flat screwdriver to unscrew the side areas and the top of the furnace. Lift the front panel off and place it to the side. The panel’s location varies between furnace models; the panel could be very well on the bottom.
After you put aside the furnace’s front panel, you have to find a button on the side of the control panel or a raised switch. In most Lennox furnace models, the reset button should be in the middle of the limit switch. If you don’t know for sure which one is the switch, you should check out the user’s guide. Reset the furnace by pressing and releasing the reset button.
4. Turn the power back on
After you press the reset button, you need to access the circuit breaker and turn the switch back to the “On” position. Power up the furnace by flipping the switch on the furnace.
Increase the thermostat’s temperature and power the furnace up again. When the reset button solves the issue, you can relax knowing that the furnace is operating adequately. Otherwise, you will have to continue troubleshooting the furnace. Go over the user’s guide to discover the problem.
Is it possible to manually reset your furnace?
Pushing the reset button means that you’re manually resetting the Lennox furnace. If you cannot do it, you can manually reboot the furnace by turning it on and off at the circuit breaker.
Go to the breaker connected to the furnace and flip it off. Please wait for 10 minutes and turn it back on afterward. It would be best if you allowed the system to return to regular operation for several minutes. Remember that you also need to turn the thermostat on.
Troubleshooting Lennox Furnace Reset Button
We want to remind you that the reset button on a furnace is, in fact, a safety feature. The reset button will shut the unit down when the furnace becomes too hot. It’s a safety measure that prevents the triggering of the circuit breaker.
The reset button will trip over and over again if:
- The air filter is clogged
- There is no gas
- The unit constantly overheats (typically, it happens when there’s not enough airflow)
- The flame sensor has developed an issue
- The gas valve isn’t running properly
The primary function of the reset button is to shut the Lennox furnace down before it trips the circuit breaker. After a power outage, you can use the reset button to turn the furnace back on.
What Happens When You Press The Reset Button?
The reset button is attached to the sensors monitoring the flame in the burner and the furnace’s inside temperature. When the flame goes out or the unit begins to overheat, the button will get triggered and the unit will shut down. It’s a safety measure that reduces the risk of further damage if the furnace doesn’t stop operating.
