While your Lennox® furnace isn’t able to chat with you, it does have a way to get your attention when there’s a furnace error.
Its control board has a set of LED lights that can share a fault code. Based on the issue, your furnace might display steady or flashing lights.
Although there are some simple heating adjustments you can complete on your own, the majority of repairs are best handled by experts. When your furnace refuses to kick on or provide warm air, reach out to Wallpe Heating & Cooling at 812-663-7252 for skilled furnace repair in Greensburg.
Our technicians will quickly determine and handle the malfunction, even if you don’t have a Lennox heating system. We can repair whichever brands or models—and get the comfort returned to your home quickly.
What Does the Blinking Light on My Furnace Mean?
Your furnace relies on lights to flash code when it is malfunctioning. It also works this system to relay it’s heating correctly.
Normal function includes:
- Concurrent slow flash—heater working properly.
- Simultaneous fast flash—furnace is starting to call for heat.
If you see a single light going on and off slowly and the other going on and off rapidly, your heating system might have a low flame signal. This can occur even when your furnace is heating properly. It means the flame sensing rod might have buildup or in the wrong spot on the burner. Call us at 812-663-7252 for support.
Here are a few other of the most typical problems for Lennox heaters.
Heating System Won’t Turn On
Here are many of the light arrangements you might notice when your furnace refuses to or keep running. The bulk of these problems must be handled by a specialist, such as one from Wallpe Heating & Cooling.
- The pair of LED lights are extinguished. This signifies your HVAC system might not be receiving power. Find the breaker box to make sure the heater fuse hasn’t triggered. You should reset the fuse if it’s in the “off” position. If it instantly flips following a reset, don’t try to reset it again and contact us at 812-663-7252.
- An individual light is stable and the other is flickering slowly. This signifies the flame rollout switch is possibly not working right. The switch is an essential safety guard that helps in avoiding fires and carbon monoxide. You shouldn’t attempt to fix this malfunction on your own.
- An individual light is flashing rapidly and the other is flashing slowly. This likely means power polarity has been reversed. Your heating system may have a wiring problem that needs expert help from Wallpe Heating & Cooling.
- The pair of lights are blinking slowly. This means your heater’s blower motor possibly isn’t operating. This piece moves warm air from the heating system into your residence. We can help in figuring out what’s causing an issue with this piece.
- One light is flickering slowly and the other is blinking quickly. This signifies your heater might have not enough voltage or a short circuit. Call our technicians at 812-663-7252 for support.
- One light is flickering on, on, off while the other flickers on, off, on. This signifies there could be trouble with your heater’s control panel or wiring. Wallpe Heating & Cooling can determine the fault and handle it.
- The duo of lights are using alternate slow blinks. This signifies your HVAC system may have a flame issue. There could be an issue with its gas supply, gas valve or ignitor control. Get in touch with us at 812-663-7252 for support.
- An individual light flickers slowly while the other stays steady. This typically indicates your HVAC equipment’s limit switch is not working. The switch prevents your HVAC equipment from becoming too warm. Call the experts at Wallpe Heating & Cooling for assistance.
Heating System Blower Operates But No Heat
Here’s what might be at fault when you hear your heater’s blower fan running, but you aren’t getting any warmth.
- The duo of lights are giving alternate fast blinks. This means your furnace ignitor may not be working. This piece lights fuel in your HVAC equipment to create warmth and should be fixed by a specialist from Wallpe Heating & Cooling.
Trust Us for Professional Furnace Repair
When you need to get your heater in working order quickly, turn to the specialists at Wallpe Heating & Cooling. Our pros will repair the error quickly and have your rooms feeling relaxing again in no time. Contact us at 812-663-7252 or contact us online to request an appointment today.