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

Its control board has a set of LED lights that can share a fault code. Subject to the issue, your furnace could use continuous or flashing lights.

Though there are various basic HVAC fixes you can finish without an expert, the majority of repairs are best handled by HVAC technicians. When your furnace will not start or provide warm air, contact James Heating & A/C, Inc at 336-853-6070 for skilled furnace repair in Lexington.

Our experts will quickly detect and fix the malfunction, even if you don’t have a Lennox heater. We can fix all types or models—and get the warmth returned to your home fast.

What Does the Blinking Light on My Heating System Mean?

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

Normal operation consists of:

  • Concurrent slow flash—heating system heating like it should.
  • Concurrent fast flash—heating system is beginning to call for heat.

If you realize that a single light flashing slowly and the other flashing quickly, your heater might be experiencing a low flame signal. This can take place even when your heater is working properly. It signifies the flame sensing rod might be dirty or in the incorrect area on the burner. Call us at 336-853-6070 for help.

Here are some of the most typical problems for Lennox HVAC systems.

Heating System Will Not Turn On

Here are some of the light patterns you may notice when your heater refuses to or keep operating. The majority of these issues need to be handled by an expert, like one from James Heating & A/C, Inc.

  1. The pair of LED lights aren’t lit. This indicates your heater might not have power. Find the breaker box to confirm the heater fuse isn’t tripped. You should reset the fuse if it’s in the “off” position. If it immediately flips after a subsequent reset, don’t try to reset it again and contact us at 336-853-6070.
  2. A single light is unchanging and the other is flickering slowly. This implies the flame rollout switch is likely malfunctioning. The component is a critical safety guard that helps in avoiding fires and carbon monoxide. You shouldn’t attempt to handle this problem yourself.
  3. A single light is flashing quickly and the other is flashing slowly. This often indicates power polarity has been transposed. Your furnace might have a wiring issue that needs expert assistance from James Heating & A/C, Inc.
  4. The duo of lights are flashing slowly. This indicates your heating system’s blower motor probably isn’t working. This piece circulates heated air from the HVAC system into your space. We can help in pinpointing what’s causing an issue with this part.
  5. One light is blinking slowly and the other is flickering rapidly. This means your heating system may have insufficient voltage or a short circuit. Contact our specialists at 336-853-6070 for support.
  6. One light is blinking on, on, off while the other blinks on, off, on. This means there may be an issue with your HVAC system’s control board or wiring. James Heating & A/C, Inc can locate the error and repair it.
  7. The duo of lights show alternating slow flashes. This indicates your heater likely has a flame failure. There might be an issue with its gas supply, gas valve or ignitor control. Contact us at 336-853-6070 for help.
  8. An individual light flashes slowly while the other is continuous. This typically indicates your HVAC system’s limit switch is not working. The switch prevents your heating system from overheating. Call the specialists at James Heating & A/C, Inc for assistance.

Furnace Blower Works But No Warm Air

Here’s what may be broken when you hear your heating system’s blower fan working, but you aren’t getting any heated air.

  • The duo of lights display every other rapid flashes. This indicates your furnace ignitor could not be in working order. This component lights energy in your heater to produce heat and should be repaired by a specialist from James Heating & A/C, Inc.

Depend on Us for Expert Furnace Repair

When you need to have your heater repaired fast, trust the specialists at James Heating & A/C, Inc. Our pros will take care of the error quickly and have your residence feeling relaxing again soon. Contact us at 336-853-6070 or contact us online to schedule an appointment right away.