While your Lennox® HVAC equipment isn’t able to talk to you, it has a process to communicate a furnace error.

Its control board has double LED lights that can share a fault code. Based on the issue, your heater could show solid or flashing lights.

Although there are a few basic furnace adjustments you can complete yourself, most tasks are best left to the professionals. When your heating system will not turn on or provide warmth, get in touch with Superior Comfort Systems at 828-202-7025 for expert furnace repair in Hendersonville.

Our specialists will rapidly determine and take care of the issue, even if you don’t have a Lennox heater. We can service all brands or configuration—and get the comfort returned to your house without delay.

What Does the Flickering Light on My Furnace Mean?

Your heater relies on lights to flash code when it requires repairs. It also uses these lights to tell you it’s operating like it should.

Normal heating includes:

  • Simultaneous slow flash—heater heating like it should.
  • Concurrent fast flash—furnace is starting to call for heat.

If you see a lone light blinking slowly and the other going on and off quickly, your furnace could have a low flame signal. This can happen even when your furnace is heating correctly. It indicates the flame sensing rod might be dirty or in the incorrect location on the burner. Contact us at 828-202-7025 for support.

Here are a few other of the most routine errors for Lennox heaters.

Furnace Refuses to Kick On

Here are a few of the light sequences you might observe when your heating system refuses to or keep running. The majority of these problems need to be repaired by a professional, for instance from Superior Comfort Systems.

  1. The pair of LED lights are extinguished. This indicates your heating system might not be receiving power. Look at the breaker box to ensure the heating system fuse is not flipped. Try resetting the fuse if it is in the “off” position. If it promptly turns off after you reset it, don’t try to reset it again and call us at 828-202-7025.
  2. An individual light is continuous and the other is flashing slowly. This shows the flame rollout switch is may be not working right. The component is a critical safety tool that helps in stopping fires and carbon monoxide. You shouldn’t seek to take care of this malfunction without professional help.
  3. A single light is flashing fast and the other is flashing slowly. This often means power polarity has been reversed. Your heating system could have a wiring fault that needs expert assistance from Superior Comfort Systems.
  4. The pair of lights are flickering slowly. This means your heating system’s blower motor likely isn’t running. This component moves warm air from the heating system into your house. We can assist in pinpointing what’s wrong with this part.
  5. A single light is flashing slowly and the other is flashing quickly. This indicates your heating system could have not enough voltage or a short circuit. Get in touch with our specialists at 828-202-7025 for support.
  6. One light is flashing on, on, off while the other flashes on, off, on. This means there may be an issue with your heater’s motherboard or wiring. Superior Comfort Systems can locate the error and take care of it.
  7. The duo of lights display alternate slow flickers. This means your HVAC system may have a flame error. There might be an issue with its gas supply, gas valve or ignitor control. Reach out to us at 828-202-7025 for assistance.
  8. A single light flickers slowly while the other stays steady. This usually means your heating system’s limit switch is experiencing an error. The switch prevents your heater from getting too hot. Get in touch with the professionals at Superior Comfort Systems for support.

Heater Blower Operates But No Heat

Here’s what might be broken when you hear your heating equipment’s blower fan working, but you aren’t getting any warmth.

  • The pair of lights are giving alternate quick blinks. This signifies your furnace ignitor might not be working. This piece kindles energy in your heating system to create heat and should be fixed by an expert from Superior Comfort Systems.

Trust Us for Skilled Furnace Repair

When you have to get your heater in working order fast, trust the technicians at Superior Comfort Systems. Our techs will handle the issue right away and have your house feeling relaxing again soon. Get in touch with us at 828-202-7025 or contact us online to schedule an appointment right away.