While your Lennox® heating system isn’t able to speak to you, it possesses a way to get your attention when there’s a furnace error.

Its control panel has double LED lights that can display a fault code. Depending on the fault, your furnace might show continuous or flashing lights.

Though there are some basic heating fixes you can finish on your own, most repairs are best left to the professionals. When your heater refuses to kick on or provide warmth, get in touch with Air Current AC & Heat at 713-322-4318 for professional furnace repair in Houston.

Our specialists will swiftly detect and handle the issue, even if you don’t use a Lennox heater. We can fix any brands or models—and get the warmth reintroduced to your residence quickly.

What Does the Blinking Light on My Heater Mean?

Your heating system relies on lights to flash code when it isn’t working right. It also uses this system to let you know it’s operating correctly.

Normal operation consists of:

  • Concurrent slow flash—furnace working correctly.
  • Concurrent fast flash—heating system is initiating the call for heat.

If you notice a lone light flashing slowly and the other blinking quickly, your furnace may be having a low flame signal. This can take place even when your furnace is heating like it should. It signifies the flame sensing rod could have buildup or in the incorrect location on the burner. Reach out to us at 713-322-4318 for support.

Here are a few other of the most common issues for Lennox heaters.

Heating System Refuses to Turn On

Here are some of the light patterns you could see when your heating system will not or keep heating. The bulk of these problems have to be taken care of by a specialist, such as one from Air Current AC & Heat.

  1. All LED lights are off. This indicates your heater might not have electricity. Examine the breaker box to ensure the heating system fuse is not triggered. Attempt to reset the fuse if it is in the “off” area. If it instantly trips following a reset, don’t touch the breaker and get in touch with us us at 713-322-4318.
  2. A single light is stable and the other is blinking slowly. This implies the flame rollout switch is possibly malfunctioning. The part is a critical safety mechanism that aids in preventing fires and carbon monoxide. You shouldn’t try to fix this malfunction yourself.
  3. An individual light is flashing rapidly and the other is flashing slowly. This likely indicates power polarity has been reversed. Your heating system could have a wiring issue that requires specialized help from Air Current AC & Heat.
  4. The pair of lights are flickering slowly. This means your heating system’s blower motor probably isn’t running. This piece moves warm air from the furnace into your rooms. We can aid in pinpointing what’s causing an issue with this component.
  5. A single light is flickering slowly and the other is blinking quickly. This signifies your heater may have insufficient voltage or a short circuit. Get in touch with our technicians at 713-322-4318 for assistance.
  6. One light is blinking on, on, off while the other flickers on, off, on. This signifies there may be a malfunction with your heater’s control board or wiring. Air Current AC & Heat can locate the issue and take care of it.
  7. The pair of lights are using every other slow blinks. This signifies your heating system likely has a flame error. There may be an issue with its gas supply, gas valve or ignitor control. Contact us at 713-322-4318 for support.
  8. A single light blinks slowly while the other remains continuous. This often means your HVAC equipment’s limit switch is malfunctioning. The switch prevents your heater from getting too hot. Call the pros at Air Current AC & Heat for assistance.

Heater Blower Runs But No Heat

Here’s what might be wrong when you notice your heating system’s blower fan running, but you aren’t gaining any warmth.

  • Both lights are giving alternate rapid flickers. This indicates your furnace ignitor may not be working. This piece ignites gas in your heater to create warmth and should be repaired by a specialist from Air Current AC & Heat.

Depend on Us for Skilled Furnace Repair

When you need to have your heater in working order fast, trust the specialists at Air Current AC & Heat. Our techs will repair the issue right away and have your house feeling comfortable again in no time. Contact us at 713-322-4318 or contact us online to schedule an appointment now.