While your Lennox® furnace cannot talk to you, it possesses a way to tell you about a furnace error.

Its motherboard has double LED lights that can share a fault code. Based on the issue, your heater might display steady or flashing lights.

Though there are various simple furnace repairs you can complete on your own, the majority of tasks are best left to the professionals. When your heating system refuses to kick on or deliver warm air, reach out to Anderson Heating & A/C at 775-854-9700 for professional furnace repair in Carson City.

Our specialists will quickly identify and repair the problem, even if you don’t own a Lennox heater. We can service whichever brands or models—and get the heat returned to your home quickly.

What Does the Blinking Light on My Heater Mean?

Your furnace relies on lights to flash code when it requires repairs. It also uses these lights to let you know it’s operating correctly.

Normal operation involves:

  • Concurrent slow flash—furnace running like it should.
  • Concurrent fast flash—furnace is initiating the call for heat.

If you realize that a lone light blinking slowly and the other flashing fast, your furnace might be experiencing a low flame signal. This can take place even when your heating system is running like it should. It indicates the flame sensing rod may need to be cleaned or in the bad area on the burner. Contact us at 775-854-9700 for help.

Here are a few other of the most common problems for Lennox furnaces.

Heater Refuses to Turn On

Here are many of the light patterns you might notice when your heating system refuses to or keep running. The bulk of these issues must be repaired by an expert, for instance from Anderson Heating & A/C.

  1. Both LED lights are off. This indicates your heating system might not be receiving power. Look at the breaker box to confirm the furnace fuse hasn’t tripped. You should reset the fuse if it is in the “off” spot. If it immediately flips after you reset it, don’t try to reset it again and contact us at 775-854-9700.
  2. A single light is stable and the other is flickering slowly. This implies the flame rollout switch is may be not working right. The component is an essential safety guard that aids in avoiding fires and carbon monoxide. You shouldn’t try to fix this malfunction on your own.
  3. An individual light is flashing rapidly and the other is blinking slowly. This typically signifies power polarity has been reversed. Your heating system could have a wiring error that requires specialized aid from Anderson Heating & A/C.
  4. The duo of lights are flickering slowly. This signifies your heating system’s blower motor possibly isn’t operating. This component moves hot air from the furnace into your house. We can help in figuring out what’s causing an issue with this part.
  5. An individual light is flashing slowly and the other is blinking fast. This indicates your heating system could have insufficient voltage or a short circuit. Reach out to our technicians at 775-854-9700 for support.
  6. One light is flashing on, on, off while the other blinks on, off, on. This means there might be trouble with your heating system’s control board or wiring. Anderson Heating & A/C can locate the problem and repair it.
  7. Both lights show alternating slow flickers. This means your HVAC system may have a flame issue. There could be an issue with its gas supply, gas valve or ignitor control. Call us at 775-854-9700 for help.
  8. An individual light flickers slowly while the other is continuous. This typically signifies your HVAC equipment’s limit switch is malfunctioning. The switch keeps your heating system from getting too hot. Reach out to the specialists at Anderson Heating & A/C for assistance.

Heater Blower Runs But No Warm Air

Here’s what might be at fault when you notice your heater’s blower fan working, but you aren’t receiving any warmth.

  • The pair of lights are showing alternate rapid flashes. This means your furnace ignitor could not be working. This piece kindles fuel in your heater to make heat and should be repaired by a specialist from Anderson Heating & A/C.

Trust Us for Skilled Furnace Repair

When you have to get your heater in working order without delay, depend on the experts at Anderson Heating & A/C. Our techs will handle the issue right away and have your space feeling comfortable again in a short time. Contact us at 775-854-9700 or contact us online to request an appointment now.