While your Lennox® furnace cannot speak to you, it has a procedure to communicate a furnace error.

Its control board has double LED lights that can display a fault code. Based on the problem, your heating system might display continuous or flashing lights.

Though there are various basic furnace fixes you can do yourself, many services are best handled by HVAC technicians. When your heater won’t kick on or give warmth, get in touch with Air Current AC & Heat at 713-322-4318 for skilled furnace repair in Houston.

Our technicians will quickly identify and take care of the breakdown, even if you don’t own a Lennox heating system. We can service any kinds or models—and get the warmth reintroduced to your house quickly.

What Does the Blinking Light on My Heating System Mean?

Your heater relies on lights to flash code when it is malfunctioning. It also uses this setup to relay it’s heating properly.

Correct heating includes:

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

If you notice a single light flashing slowly and the other blinking fast, your heating system could be experiencing a low flame signal. This can happen even when your furnace is heating like it should. It means the flame sensing rod could need to be cleaned or in the incorrect location on the burner. Contact us at 713-322-4318 for help.

Here are a few other of the most routine issues for Lennox furnaces.

Heating System Refuses to Kick On

Here are many of the light sequences you may notice when your furnace won’t turn on or keep operating. The majority of these issues need to be fixed by an expert, like one from Air Current AC & Heat.

  1. Both LED lights are extinguished. This signifies your HVAC system might not have power. Examine the breaker box to make sure the heating system fuse isn’t flipped. Attempt to reset the fuse if it is in the “off” position. If it instantly flips following a reset, don’t try to reset it again and get in touch with us us at 713-322-4318.
  2. A single light is unchanging and the other is flickering slowly. This implies the flame rollout switch is may be open. The component is an essential safety tool that helps in preventing fires and carbon monoxide. You shouldn’t attempt to take care of this malfunction yourself.
  3. A single light is flickering fast and the other is flickering slowly. This often indicates power polarity has been inverted. Your heating system could have a wiring issue that needs professional aid from Air Current AC & Heat.
  4. Both lights are flashing slowly. This means your heating system’s blower motor possibly isn’t running. This part sends hot air from the HVAC system into your rooms. We can help in pinpointing what’s causing a problem with this part.
  5. A single light is blinking slowly and the other is flashing fast. This means your HVAC system may have low voltage or a short circuit. Reach out to our technicians at 713-322-4318 for assistance.
  6. One light is flashing on, on, off while the other blinks on, off, on. This means there might be trouble with your heater’s control board or wiring. Air Current AC & Heat can pinpoint the fault and handle it.
  7. Both lights are using every other slow flickers. This signifies your HVAC equipment possibly has a flame problem. There could be an issue with its gas supply, gas valve or ignitor control. Reach out to us at 713-322-4318 for help.
  8. An individual light blinks slowly while the other remains steady. This typically indicates 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 support.

Heater Blower Works But No Warmth

Here’s what may be wrong when you hear your heating system’s blower fan working, but you aren’t gaining any warmth.

  • The pair of lights display every other rapid blinks. This means your furnace ignitor might not be working. This piece lights energy in your heating system to make heat and should be fixed by a specialist from Air Current AC & Heat.

Turn to Us for Skilled Furnace Repair

When you have to get your HVAC equipment repaired quickly, trust the professionals at Air Current AC & Heat. Our techs will take care of the issue right away and have your house feeling comfortable again in a short time. Get in touch with us at 713-322-4318 or contact us online to schedule an appointment today.