While your Lennox® heater can’t speak to you, it has a procedure to get your attention when there’s a furnace error.

Its control panel has double LED lights that can display a fault code. Subject to the malfunction, your furnace may display continuous or flashing lights.

Although there are certain basic heating fixes you can complete on your own, most fixes are best taken care of by HVAC technicians. When your heating system will not kick on or put out heat, get in touch with Dial One Mears Air Conditioning & Heating Inc at 602-789-3315 for skilled furnace repair in Phoenix.

Our technicians will quickly discover and handle the breakdown, even if you don’t use a Lennox heater. We can service whichever types or configuration—and get the heat returned to your home quickly.

What Does the Flickering Light on My Heating System Mean?

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

Regular function consists of:

  • Concurrent slow flash—heating system running properly.
  • Simultaneous fast flash—heater is beginning to call for heat.

If you see a lone light blinking slowly and the other blinking rapidly, your heating system could have a low flame signal. This can occur even when your furnace is heating properly. It signifies the flame sensing rod could have buildup or in the bad area on the burner. Contact us at 602-789-3315 for support.

Here are a few other of the most typical errors for Lennox heating systems.

Furnace Will Not Start

Here are a few of the light sequences you may see when your heater won’t turn on or keep heating. Most of these errors need to be handled by a specialist, like one from Dial One Mears Air Conditioning & Heating Inc.

  1. Both LED lights aren’t lit. This indicates your heater might not have electricity. Find the breaker box to make sure the furnace fuse has not tripped. You should reset the fuse if it’s in the “off” area. If it rapidly trips after a subsequent reset, don’t try to reset it again and contact us at 602-789-3315.
  2. One light is unchanging and the other is flickering slowly. This signifies the flame rollout switch is may be open. The part is an essential safety tool that aids in avoiding fires and carbon monoxide. You shouldn’t seek to repair this problem without professional help.
  3. An individual light is blinking fast and the other is blinking slowly. This likely means power polarity has been transposed. Your heater may have a wiring fault that calls for professional assistance from Dial One Mears Air Conditioning & Heating Inc.
  4. Both lights are flickering slowly. This indicates your furnace’s blower motor possibly isn’t running. This part circulates hot air from the heating system into your space. We can assist in determining what’s causing an issue with this piece.
  5. One light is flashing slowly and the other is flickering quickly. This indicates your heater could have insufficient voltage or a short circuit. Reach out to our technicians at 602-789-3315 for help.
  6. One light is flashing on, on, off while the other blinks on, off, on. This signifies there might be an issue with your heating system’s control panel or wiring. Dial One Mears Air Conditioning & Heating Inc can determine the error and handle it.
  7. The duo of lights display alternate slow blinks. This signifies your heater possibly has a flame problem. There might be a problem with its gas supply, gas valve or ignitor control. Contact us at 602-789-3315 for assistance.
  8. An individual light blinks slowly while the other stays steady. This often indicates your HVAC system’s limit switch is not working. The switch prevents your heating system from becoming too warm. Get in touch with the specialists at Dial One Mears Air Conditioning & Heating Inc for assistance.

Furnace Blower Works But No Warmth

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

  • Both lights are showing alternate fast flashes. This indicates your furnace ignitor might not be working. This part kindles energy in your heating system to produce heat and should be serviced by a technician from Dial One Mears Air Conditioning & Heating Inc.

Depend on Us for Professional Furnace Repair

When you have to have your HVAC equipment repaired fast, depend on the professionals at Dial One Mears Air Conditioning & Heating Inc. Our technicians will repair the issue without delay and have your residence feeling comfortable again in no time. Contact us at 602-789-3315 or contact us online to schedule an appointment now.