While your Lennox® furnace cannot talk to you, it has a way to tell you about a furnace error.

Its motherboard has two LED lights that can share a fault code. Depending on the problem, your furnace might use continuous or flashing lights.

While there are some basic furnace adjustments you can finish on your own, many services are best taken care of by experts. When your heater refuses to kick on or give heated air, call Total Assurance AC & Heating at 361-217-7080 for skilled furnace repair in Corpus Christi.

Our specialists will speedily detect and take care of the issue, even if you don’t use a Lennox heater. We can repair whichever types or makes—and get the heat reintroduced to your residence fast.

What Does the Blinking Light on My Furnace Mean?

Your furnace relies on lights to flash code when it isn’t working right. It also uses these lights to relay it’s operating properly.

Regular function includes:

  • Simultaneous slow flash—furnace running properly.
  • Both lights flash fast—furnace is initiating the call for heat.

If you realize that a lone light going on and off slowly and the other blinking quickly, your heating system may be having a low flame signal. This can occur even when your furnace is working like it should. It means the flame sensing rod may have buildup or in the wrong location on the burner. Contact us at 361-217-7080 for assistance.

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

Heating System Won’t Start

Here are some of the light patterns you might see when your heater refuses to or keep heating. The bulk of these problems have to be handled by a technician, such as one from Total Assurance AC & Heating.

  1. The duo of LED lights are off. This signifies your heater might not have electricity. Go to the breaker box to make sure the heater fuse has not flipped. Try resetting the fuse if it’s in the “off” area. If it instantly turns off after you reset it, don’t try to reset it again and call us at 361-217-7080.
  2. An individual light is continuous and the other is flickering slowly. This shows the flame rollout switch is possibly not working right. The component is a critical safety mechanism that helps in avoiding fires and carbon monoxide. You shouldn’t try to handle this malfunction without professional help.
  3. One light is flashing quickly and the other is blinking slowly. This likely indicates power polarity has been transposed. Your furnace could have a wiring problem that needs professional help from Total Assurance AC & Heating.
  4. Both lights are blinking slowly. This indicates your heating system’s blower motor possibly isn’t working. This piece moves warm air from the HVAC system into your space. We can aid in figuring out what’s causing a problem with this piece.
  5. A single light is flashing slowly and the other is flashing rapidly. This indicates your HVAC system may have not enough voltage or a short circuit. Reach out to our specialists at 361-217-7080 for assistance.
  6. One light is flickering on, on, off while the other flickers on, off, on. This means there could be an issue with your heating system’s control board or wiring. Total Assurance AC & Heating can determine the error and repair it.
  7. Both lights show alternating slow blinks. This signifies your HVAC system possibly has a flame error. There might be trouble with its gas supply, gas valve or ignitor control. Call us at 361-217-7080 for support.
  8. A single light flashes slowly while the other stays continuous. This typically indicates your heater’s limit switch is not working. The switch stops your HVAC system from becoming too warm. Call the professionals at Total Assurance AC & Heating for help.

Heating System Blower Operates But No Warm Air

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

  • The pair of lights are giving alternate rapid flashes. This indicates your furnace ignitor might not be working. This part kindles gas in your furnace to create warmth and should be repaired by a technician from Total Assurance AC & Heating.

Turn to Us for Skilled Furnace Repair

When you need to get your heater repaired quickly, depend on the specialists at Total Assurance AC & Heating. Our pros will take care of the error without delay and have your house feeling cozy again in a short time. Contact us at 361-217-7080 or contact us online to schedule an appointment right away.