While your Lennox® furnace isn’t able to speak to you, it possesses a method to tell you about a furnace error.

Its motherboard has two LED lights that can display a fault code. Subject to the issue, your heating system might use solid or flashing lights.

Though there are a few basic HVAC repairs you can finish on your own, many services are best left to the professionals. When your heating system will not kick on or give heated air, reach out to 249 Air at 832-263-1969 for professional furnace repair in Houston.

Our specialists will quickly identify and take care of the problem, even if you don’t own a Lennox heating system. We can fix any brands or makes—and get the warmth returned to your home quickly.

What Does the Flashing Light on My Heater Mean?

Your heating system uses lights to flash code when it requires repairs. It also uses this setup to let you know it’s operating properly.

Regular operation consists of:

  • Simultaneous slow flash—heating system running like it should.
  • Both lights flash fast—heater is starting to call for heat.

If you realize that a single light going on and off slowly and the other blinking fast, your heater could be having a low flame signal. This can take place even when your heater is working properly. It means the flame sensing rod might have buildup or in the bad spot on the burner. Reach out to us at 832-263-1969 for help.

Here are some of the most routine problems for Lennox heaters.

Heating System Will Not Kick On

Here are some of the light arrangements you could observe when your furnace refuses to or keep running. Most of these errors need to be fixed by a technician, for instance from 249 Air.

  1. All LED lights aren’t lit. This means your heater 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 promptly turns off following a reset, don’t touch the breaker and get in touch with us us at 832-263-1969.
  2. An individual light is stable and the other is flickering slowly. This shows the flame rollout switch is may be open. The component is an essential safety tool that aids in stopping fires and carbon monoxide. You shouldn’t try to fix this malfunction on your own.
  3. One light is flickering quickly and the other is flickering slowly. This likely signifies power polarity has been reversed. Your heater may have a wiring fault that requires expert assistance from 249 Air.
  4. Both lights are blinking slowly. This means your heater’s blower motor probably isn’t operating. This piece circulates hot air from the furnace into your rooms. We can aid in determining what’s causing a problem with this piece.
  5. A single light is flickering slowly and the other is flashing fast. This indicates your heating system could have insufficient voltage or a short circuit. Contact our technicians at 832-263-1969 for support.
  6. One light is flickering on, on, off while the other flashes on, off, on. This means there might be an issue with your heater’s control board or wiring. 249 Air can find the issue and handle it.
  7. Both lights are using alternating slow flickers. This indicates your HVAC equipment likely has a flame issue. There could be an issue with its gas supply, gas valve or ignitor control. Call us at 832-263-1969 for assistance.
  8. An individual light flashes slowly while the other stays solid. This typically means your heating system’s limit switch is experiencing an error. The switch keeps your HVAC system from becoming too warm. Get in touch with the professionals at 249 Air for help.

Heating System Blower Operates But No Warm Air

Here’s what might be at fault when you observe your heater’s blower fan working, but you aren’t receiving any warm air.

  • The duo of lights display every other quick flashes. This signifies your furnace ignitor might not be in working order. This piece kindles energy in your heating system to produce warmth and should be serviced by an expert from 249 Air.

Trust Us for Professional Furnace Repair

When you need to have your HVAC equipment repaired fast, turn to the technicians at 249 Air. Our pros will repair the error quickly and have your house feeling relaxing again soon. Contact us at 832-263-1969 or contact us online to schedule an appointment now.