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

Its control panel has double LED lights that can share a fault code. Subject to the issue, your heating system could show solid or flashing lights.

While there are a few basic HVAC adjustments you can complete yourself, most tasks are best taken care of by experts. When your furnace will not kick on or put out heated air, call AZ Air Conditioning and Heating at 800-296-5088 for professional furnace repair in Los Angeles.

Our specialists will swiftly identify and fix the issue, even if you don’t have a Lennox heating system. We can fix whichever types or makes—and get the comfort reintroduced to your house quickly.

What Does the Flickering Light on My Furnace Mean?

Your furnace uses lights to flash code when it requires repairs. It also uses these lights to relay it’s working like it should.

Regular heating consists of:

  • Concurrent slow flash—heating system operating like it should.
  • Both lights flash fast—furnace is initiating the call for heat.

If you notice a single light flashing slowly and the other going on and off fast, your heating system might be having a low flame signal. This can happen even when your furnace is heating correctly. It indicates the flame sensing rod may need to be cleaned or in the incorrect location on the burner. Reach out to us at 800-296-5088 for help.

Here are some of the most common issues for Lennox HVAC systems.

Furnace Refuses to Turn On

Here are some of the light sequences you may observe when your furnace refuses to or keep running. Most of these errors must be fixed by a specialist, such as one from AZ Air Conditioning and Heating.

  1. The duo of LED lights are extinguished. This indicates your heater might not be receiving power. Examine the breaker box to ensure the heating system fuse is not flipped. Attempt to reset the fuse if it is in the “off” area. If it promptly trips following a reset, don’t touch the breaker and contact us at 800-296-5088.
  2. An individual light is unchanging and the other is flickering slowly. This shows the flame rollout switch is possibly not working right. The switch is a critical safety device that assists in preventing fires and carbon monoxide. You shouldn’t seek to fix this malfunction without professional help.
  3. One light is blinking fast and the other is flickering slowly. This typically indicates power polarity has been reversed. Your heater could have a wiring problem that requires expert support from AZ Air Conditioning and Heating.
  4. All lights are blinking slowly. This means your heating system’s blower motor probably isn’t operating. This component distributes warm air from the heating system into your rooms. We can assist in determining what’s causing an issue with this part.
  5. A single light is flickering slowly and the other is flashing quickly. This means your heater could have low voltage or a short circuit. Reach out to our experts at 800-296-5088 for support.
  6. One light is flickering on, on, off while the other blinks on, off, on. This means there may be a fault with your heater’s control board or wiring. AZ Air Conditioning and Heating can locate the error and take care of it.
  7. The duo of lights are using alternate slow blinks. This means your HVAC system possibly has a flame failure. There might be a problem with its gas supply, gas valve or ignitor control. Call us at 800-296-5088 for assistance.
  8. An individual light flickers slowly while the other stays steady. This often means your heating system’s limit switch is experiencing an error. The switch prevents your HVAC equipment from becoming too warm. Get in touch with the experts at AZ Air Conditioning and Heating for assistance.

Heater Blower Works But No Heat

Here’s what may be broken when you notice your heating equipment’s blower fan working, but you aren’t receiving any warmth.

  • Both lights are showing every other quick blinks. This signifies your furnace ignitor might not be in working order. This component kindles gas in your heating system to produce warmth and should be fixed by an expert from AZ Air Conditioning and Heating.

Trust Us for Professional Furnace Repair

When you have to have your heater repaired fast, depend on the professionals at AZ Air Conditioning and Heating. Our technicians will take care of the error right away and have your space feeling cozy again in no time. Get in touch with us at 800-296-5088 or contact us online to request an appointment today.