While your Lennox® heater can’t talk to you, it possesses a way to get your attention when there’s a furnace error.

Its control board has double LED lights that can show a fault code. Depending on the problem, your furnace could use solid or flashing lights.

While there are a few simple furnace fixes you can complete without an expert, many repairs are best handled by HVAC technicians. When your furnace refuses to turn on or put out warmth, contact Evenaire Heating & Air Conditioning at 512-355-1482 for experienced furnace repair in Pflugerville.

Our experts will rapidly identify and fix the malfunction, even if you don’t have a Lennox heating system. We can repair any types or configuration—and get the comfort returned to your residence quickly.

What Does the Blinking Light on My Heater Mean?

Your furnace uses lights to flash code when it isn’t working right. It also works this setup to tell you it’s heating correctly.

Normal function involves:

  • Simultaneous slow flash—heater operating properly.
  • Concurrent fast flash—furnace is starting to call for heat.

If you notice a lone light going on and off slowly and the other blinking rapidly, your heating system might be experiencing a low flame signal. This can happen even when your heating system is heating like it should. It indicates the flame sensing rod might need to be cleaned or in the wrong area on the burner. Contact us at 512-355-1482 for support.

Here are several other of the most common issues for Lennox heating systems.

Heater Refuses to Turn On

Here are some of the light arrangements you may see when your heater won’t turn on or keep running. Most of these errors need to be fixed by a professional, for instance from Evenaire Heating & Air Conditioning.

  1. All LED lights aren’t lit. This signifies your HVAC system might not have power. Look at the breaker box to confirm the furnace fuse has not flipped. Try resetting the fuse if it’s in the “off” spot. If it rapidly flips after a subsequent reset, don’t touch the breaker and contact us at 512-355-1482.
  2. A single light is unchanging and the other is flashing slowly. This shows the flame rollout switch is may be not working right. The component is an essential safety guard that assists in stopping fires and carbon monoxide. You shouldn’t attempt to fix this malfunction without professional help.
  3. A single light is blinking fast and the other is flashing slowly. This likely signifies power polarity has been reversed. Your heater might have a wiring fault that calls for specialized aid from Evenaire Heating & Air Conditioning.
  4. The pair of lights are blinking slowly. This signifies your furnace’s blower motor likely isn’t operating. This component circulates heated air from the furnace into your rooms. We can assist in pinpointing what’s causing an issue with this component.
  5. One light is flashing slowly and the other is flashing quickly. This signifies your HVAC system might have not enough voltage or a short circuit. Get in touch with our technicians at 512-355-1482 for help.
  6. One light is blinking on, on, off while the other flickers on, off, on. This signifies there could be a malfunction with your heater’s control panel or wiring. Evenaire Heating & Air Conditioning can pinpoint the fault and handle it.
  7. The pair of lights are using alternating slow blinks. This indicates your HVAC equipment may have a flame problem. There might be trouble with its gas supply, gas valve or ignitor control. Reach out to us at 512-355-1482 for assistance.
  8. A single light flickers slowly while the other remains steady. This often indicates your HVAC system’s limit switch is experiencing an error. The switch stops your heater from overheating. Get in touch with the pros at Evenaire Heating & Air Conditioning for assistance.

Furnace Blower Runs But No Warmth

Here’s what could be at fault when you hear your heater’s blower fan running, but you aren’t receiving any heated air.

  • Both lights display alternate quick blinks. This signifies your furnace ignitor might not be in working order. This piece lights energy in your HVAC equipment to produce warm air and should be fixed by a technician from Evenaire Heating & Air Conditioning.

Turn to Us for Skilled Furnace Repair

When you need to have your heater fixed without delay, depend on the professionals at Evenaire Heating & Air Conditioning. Our techs will repair the issue without delay and have your residence feeling comfortable again in a short time. Contact us at 512-355-1482 or contact us online to get an appointment right away.