While your Lennox® heater can’t chat with you, it does have a procedure to tell you about a furnace error.

Its control panel has double LED lights that can show a fault code. Subject to the issue, your heater may use continuous or flashing lights.

While there are various elementary furnace repairs you can finish yourself, the majority of repairs are best taken care of by HVAC technicians. When your heating system refuses to start or provide heated air, get in touch with AC Sales at (337) 234-2345 for skilled furnace repair in Lafayette.

Our experts will rapidly detect and take care of the breakdown, even if you don’t have a Lennox heater. We can service any types or models—and get the warmth returned to your home without delay.

What Does the Blinking Light on My Heating System Mean?

Your heating system relies on lights to flash code when it isn’t working right. It also works this system to relay it’s operating like it should.

Normal function involves:

  • Simultaneous slow flash—heating system operating correctly.
  • Simultaneous fast flash—heater is beginning to call for heat.

If you realize that a lone light going on and off slowly and the other blinking quickly, your heating system could have a low flame signal. This can take place even when your heating system is working correctly. It signifies the flame sensing rod could be dirty or in the bad location on the burner. Contact us at (337) 234-2345 for support.

Here are a few other of the most typical faults for Lennox furnaces.

Furnace Won’t Turn On

Here are a few of the light patterns you might see when your heat will not or keep running. The bulk of these problems need to be taken care of by a professional, such as one from AC Sales.

  1. The duo of LED lights aren’t lit. This indicates your heating system might not be receiving power. Find the breaker box to ensure the furnace fuse has not flipped. You should reset the fuse if it’s in the “off” area. If it promptly trips following a reset, don’t try to reset it again and call us at (337) 234-2345.
  2. A single light is unchanging and the other is blinking slowly. This shows the flame rollout switch is may be not working right. The part is an essential safety device that assists in preventing fires and carbon monoxide. You shouldn’t try to fix this malfunction without professional help.
  3. A single light is blinking fast and the other is blinking slowly. This likely means power polarity has been transposed. Your furnace could have a wiring error that calls for expert assistance from AC Sales.
  4. The pair of lights are flashing slowly. This signifies your heating system’s blower motor likely isn’t running. This piece moves warm air from the furnace into your rooms. We can aid in determining what’s causing an issue with this component.
  5. One light is flashing slowly and the other is flickering fast. This signifies your HVAC system might have insufficient voltage or a short circuit. Contact our specialists at (337) 234-2345 for help.
  6. One light is flashing on, on, off while the other blinks on, off, on. This means there might be a fault with your heater’s control panel or wiring. AC Sales can determine the fault and handle it.
  7. Both lights are using alternating slow blinks. This indicates your heater possibly has a flame issue. There might be trouble with its gas supply, gas valve or ignitor control. Contact us at (337) 234-2345 for assistance.
  8. An individual light flashes slowly while the other stays solid. This often means your heating system’s limit switch is not working. The switch prevents your heating system from overheating. Call the professionals at AC Sales for assistance.

Heating System Blower Runs But No Warmth

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

  • The pair of lights display alternate rapid blinks. This signifies your furnace ignitor may not be working. This part lights energy in your heater to produce heat and should be repaired by a technician from AC Sales.

Trust Us for Professional Furnace Repair

When you need to get your heating system fixed without delay, depend on the specialists at AC Sales. Our technicians will fix the issue right away and have your house feeling comfortable again in a short time. Get in touch with us at (337) 234-2345 or contact us online to request an appointment today.