While your Lennox® furnace cannot talk to you, it possesses a method to communicate a furnace error.

Its control panel has a set of LED lights that can share a fault code. Depending on the issue, your heater may show steady or flashing lights.

Although there are certain elementary heating fixes you can take care of on your own, most tasks are best left to experts. When your heater won’t start or deliver warm air, get in touch with Enertek Air Conditioning & Heating at (818) 727-9993 for experienced furnace repair in Northridge.

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

What Does the Flashing Light on My Heater Mean?

Your heater depends on lights to flash code when it is malfunctioning. It also uses these lights to let you know it’s heating properly.

Correct heating includes:

  • Simultaneous slow flash—heating system operating correctly.
  • Concurrent fast flash—furnace is starting to call for heat.

If you notice a single light flashing slowly and the other going on and off fast, your heating system could have a low flame signal. This can take place even when your heater is running correctly. It indicates the flame sensing rod might be dirty or in the incorrect spot on the burner. Call us at (818) 727-9993 for assistance.

Here are some of the most routine faults for Lennox HVAC systems.

Heater Won’t Kick On

Here are a few of the light sequences you could observe when your heating system will not or keep running. The bulk of these issues must be repaired by an expert, like one from Enertek Air Conditioning & Heating.

  1. All LED lights aren’t lit. This signifies your heater might not have power. Examine the breaker box to confirm the heater fuse is not triggered. Try resetting the fuse if it is in the “off” spot. If it instantly turns off following a reset, don’t touch the breaker and get in touch with us us at (818) 727-9993.
  2. One light is continuous and the other is blinking slowly. This shows the flame rollout switch is likely malfunctioning. The component is an essential safety guard that helps in stopping fires and carbon monoxide. You shouldn’t attempt to repair this problem on your own.
  3. One light is flashing quickly and the other is blinking slowly. This likely means power polarity has been inverted. Your heater might have a wiring problem that needs professional support from Enertek Air Conditioning & Heating.
  4. All lights are flashing slowly. This means your heater’s blower motor likely isn’t operating. This part distributes heated air from the heater into your residence. We can aid in determining what’s causing a problem with this component.
  5. A single light is flashing slowly and the other is flashing rapidly. This indicates your heater could have insufficient voltage or a short circuit. Get in touch with our technicians at (818) 727-9993 for help.
  6. One light is flickering on, on, off while the other blinks on, off, on. This means there might be an issue with your heating system’s motherboard or wiring. Enertek Air Conditioning & Heating can locate the issue and handle it.
  7. Both lights show alternate slow flashes. This indicates your heater may have a flame issue. There might be a problem with its gas supply, gas valve or ignitor control. Call us at (818) 727-9993 for help.
  8. A single light flickers slowly while the other is steady. This usually means your heating system’s limit switch is experiencing an error. The switch stops your HVAC equipment from getting too hot. Call the pros at Enertek Air Conditioning & Heating for support.

Furnace Blower Runs But No Warm Air

Here’s what might be wrong when you hear your heating system’s blower fan running, but you aren’t getting any warm air.

  • The pair of lights are showing every other quick flashes. This indicates your furnace ignitor might be broken. This piece lights gas in your furnace to create heat and should be repaired by a specialist from Enertek Air Conditioning & Heating.

Trust Us for Professional Furnace Repair

When you need to have your HVAC equipment fixed quickly, turn to the specialists at Enertek Air Conditioning & Heating. Our techs will repair the issue quickly and have your residence feeling cozy again soon. Get in touch with us at (818) 727-9993 or contact us online to schedule an appointment right away.