While your Lennox® heating system isn’t able to speak to you, it does have a procedure to tell you about a furnace error.

Its control board has twin LED lights that can display a fault code. Subject to the malfunction, your furnace could display continuous or flashing lights.

Although there are certain elementary furnace adjustments you can do on your own, the majority of repairs are best handled by the professionals. When your heater will not start or give warmth, contact Covington Air Systems at (770) 462-5319 for professional furnace repair in Covington.

Our technicians will speedily identify and handle the problem, even if you don’t own a Lennox heating system. We can service any kinds or models—and get the warmth reintroduced to your house fast.

What Does the Blinking Light on My Heater Mean?

Your heater depends on lights to flash code when it is malfunctioning. It also engages this setup to relay it’s working correctly.

Normal operation involves:

  • Concurrent slow flash—furnace operating properly.
  • Simultaneous fast flash—heating system is initiating the call for heat.

If you notice a single light going on and off slowly and the other flashing fast, your heater could be experiencing a low flame signal. This can take place even when your heater is heating correctly. It means the flame sensing rod might be dirty or in the incorrect area on the burner. Call us at (770) 462-5319 for assistance.

Here are a few other of the most routine faults for Lennox furnaces.

Heating System Refuses to Kick On

Here are some of the light patterns you might notice when your heating system won’t turn on or keep heating. The bulk of these errors need to be repaired by a technician, such as one from Covington Air Systems.

  1. All LED lights are extinguished. This signifies your heater might not have electricity. Go to the breaker box to confirm the heating system fuse has not tripped. You should reset the fuse if it’s in the “off” spot. If it instantly flips after a subsequent reset, don’t try to reset it again and call us at (770) 462-5319.
  2. One light is stable and the other is flashing slowly. This signifies the flame rollout switch is possibly malfunctioning. The switch is an essential safety device that helps in preventing fires and carbon monoxide. You shouldn’t try to fix this problem yourself.
  3. One light is flashing fast and the other is flickering slowly. This likely means power polarity has been reversed. Your furnace might have a wiring issue that calls for professional support from Covington Air Systems.
  4. The duo of lights are blinking slowly. This indicates your heater’s blower motor possibly isn’t running. This part distributes heated air from the heating system into your space. We can aid in pinpointing what’s wrong with this part.
  5. A single light is flickering slowly and the other is flickering quickly. This signifies your heater may have low voltage or a short circuit. Contact our experts at (770) 462-5319 for help.
  6. One light is blinking on, on, off while the other flickers on, off, on. This means there may be a fault with your heater’s control board or wiring. Covington Air Systems can find the problem and fix it.
  7. The pair of lights display alternating slow blinks. This indicates your HVAC system likely has a flame error. There may be an issue with its gas supply, gas valve or ignitor control. Get in touch with us at (770) 462-5319 for help.
  8. An individual light flickers slowly while the other remains steady. This typically indicates your heater’s limit switch is not working. The switch prevents your HVAC equipment from becoming too warm. Call the professionals at Covington Air Systems for support.

Furnace Blower Operates But No Heat

Here’s what could be at fault when you observe your heating system’s blower fan working, but you aren’t gaining any heated air.

  • The pair of lights are showing alternate rapid flashes. This signifies your furnace ignitor may be broken. This component kindles fuel in your HVAC equipment to make heat and should be fixed by a technician from Covington Air Systems.

Trust Us for Expert Furnace Repair

When you need to have your HVAC equipment repaired fast, trust the experts at Covington Air Systems. Our techs will handle the fault right away and have your house feeling relaxing again in no time. Get in touch with us at (770) 462-5319 or contact us online to request an appointment now.