While your Lennox® HVAC equipment can’t speak to you, it does have a procedure to tell you about a furnace error.

Its control panel has double LED lights that can display a fault code. Based on the failure, your furnace could use continuous or flashing lights.

Though there are some elementary HVAC fixes you can take care of yourself, the majority of fixes are best taken care of by HVAC technicians. When your furnace refuses to kick on or put out warmth, reach out to Northern Comfort Inc at 507-387-6596 for experienced furnace repair in Mankato area.

Our technicians will speedily identify and repair the breakdown, even if you don’t use a Lennox heating system. We can fix whichever brands or makes—and get the heat reintroduced to your residence without delay.

What Does the Flickering Light on My Furnace Mean?

Your heating system uses lights to flash code when it is malfunctioning. It also works this system to let you know it’s heating correctly.

Normal heating consists of:

  • Concurrent slow flash—furnace running correctly.
  • Concurrent fast flash—furnace is initiating the call for heat.

If you realize that a solitary light going on and off slowly and the other going on and off fast, your heater may have a low flame signal. This can happen even when your furnace is operating correctly. It means the flame sensing rod could be dirty or in the bad location on the burner. Call us at 507-387-6596 for support.

Here are several other of the most typical problems for Lennox HVAC systems.

Heater Will Not Turn On

Here are many of the light arrangements you could see when your heater refuses to or keep operating. The bulk of these errors have to be repaired by a technician, like one from Northern Comfort Inc.

  1. All LED lights are off. This signifies your HVAC system might not have electricity. Find the breaker box to confirm the furnace fuse is not flipped. You should reset the fuse if it is in the “off” area. If it instantly turns off after a subsequent reset, don’t try to reset it again and contact us at 507-387-6596.
  2. One light is stable and the other is blinking slowly. This signifies the flame rollout switch is likely open. The part is an essential safety guard that aids in preventing fires and carbon monoxide. You shouldn’t attempt to fix this issue on your own.
  3. A single light is flickering fast and the other is flickering slowly. This often indicates power polarity has been transposed. Your heater might have a wiring issue that needs specialized aid from Northern Comfort Inc.
  4. All lights are flickering slowly. This means your heater’s blower motor possibly isn’t running. This component sends heated air from the heating system into your rooms. We can assist in determining what’s causing a problem with this piece.
  5. One light is blinking slowly and the other is flashing fast. This means your heater might have insufficient voltage or a short circuit. Reach out to our experts at 507-387-6596 for support.
  6. One light is flashing on, on, off while the other flashes on, off, on. This signifies there might be a fault with your HVAC system’s motherboard or wiring. Northern Comfort Inc can determine the issue and repair it.
  7. Both lights display every other slow flickers. This means your HVAC system may have a flame failure. There might be trouble with its gas supply, gas valve or ignitor control. Reach out to us at 507-387-6596 for support.
  8. A single light flashes slowly while the other remains steady. This typically means your heating system’s limit switch is not working. The switch keeps your heating system from getting too hot. Call the experts at Northern Comfort Inc for support.

Heating System Blower Operates But No Warm Air

Here’s what might be wrong when you notice your heating equipment’s blower fan running, but you aren’t gaining any warm air.

  • Both lights are giving alternate rapid flashes. This signifies your furnace ignitor might be broken. This part ignites fuel in your HVAC equipment to produce warmth and should be repaired by a specialist from Northern Comfort Inc.

Depend on Us for Professional Furnace Repair

When you have to get your HVAC equipment fixed quickly, turn to the technicians at Northern Comfort Inc. Our technicians will take care of the fault quickly and have your rooms feeling comfortable again in a short time. Contact us at 507-387-6596 or contact us online to schedule an appointment right away.