While your Lennox® heater cannot speak to you, it does have a process to communicate a furnace error.

Its control panel has double LED lights that can display a fault code. Subject to the fault, your heater might show steady or flashing lights.

Although there are certain simple furnace fixes you can do yourself, many tasks are best left to the professionals. When your heater won’t start or put out warm air, get in touch with Appalachian Heating at 304-707-0600 for skilled furnace repair in Beckley.

Our technicians will quickly discover and repair the problem, even if you don’t use a Lennox heating system. We can fix all brands or models—and get the warmth returned to your residence without delay.

What Does the Flickering Light on My Furnace Mean?

Your heating system uses lights to flash code when it isn’t working right. It also engages these lights to tell you it’s operating properly.

Normal heating involves:

  • Concurrent slow flash—furnace operating properly.
  • Concurrent fast flash—heating system is starting to call for heat.

If you notice a lone light blinking slowly and the other flashing rapidly, your heater could have a low flame signal. This can happen even when your furnace is working like it should. It means the flame sensing rod could have buildup or in the wrong area on the burner. Contact us at 304-707-0600 for help.

Here are some of the most common errors for Lennox heating systems.

Furnace Will Not Turn On

Here are a few of the light sequences you may observe when your heating system will not or keep heating. Most of these errors need to be fixed by a technician, for instance from Appalachian Heating.

  1. The pair of LED lights are extinguished. This signifies your HVAC system might not be receiving power. Find the breaker box to ensure the furnace fuse hasn’t flipped. You should reset the fuse if it’s in the “off” area. If it immediately flips after a subsequent reset, don’t touch the breaker and contact us at 304-707-0600.
  2. One light is continuous and the other is blinking slowly. This shows the flame rollout switch is likely not working right. The switch is an essential safety device that assists in avoiding fires and carbon monoxide. You shouldn’t seek to fix this issue on your own.
  3. An individual light is blinking quickly and the other is blinking slowly. This often indicates power polarity has been inverted. Your heating system could have a wiring fault that calls for expert support from Appalachian Heating.
  4. The pair of lights are flashing slowly. This indicates your heating system’s blower motor probably isn’t operating. This part circulates warm air from the heater into your house. We can help in determining what’s causing a problem with this component.
  5. A single light is flashing slowly and the other is flickering rapidly. This means your heater may have not enough voltage or a short circuit. Call our experts at 304-707-0600 for assistance.
  6. One light is flashing on, on, off while the other flashes on, off, on. This signifies there may be a fault with your heater’s control board or wiring. Appalachian Heating can determine the fault and take care of it.
  7. The duo of lights display alternating slow blinks. This signifies your heater likely has a flame failure. There might be a problem with its gas supply, gas valve or ignitor control. Call us at 304-707-0600 for assistance.
  8. An individual light blinks slowly while the other remains continuous. This often indicates your heating system’s limit switch is experiencing an error. The switch prevents your HVAC equipment from getting too hot. Reach out to the pros at Appalachian Heating for help.

Furnace Blower Runs But No Warmth

Here’s what might be wrong when you notice your heating equipment’s blower fan working, but you aren’t gaining any heated air.

  • The duo of lights are giving alternate fast flashes. This means your furnace ignitor may not be in working order. This component ignites energy in your heating system to create heat and should be repaired by a specialist from Appalachian Heating.

Depend on Us for Professional Furnace Repair

When you need to have your heater repaired fast, turn to the professionals at Appalachian Heating. Our techs will take care of the error right away and have your house feeling comfortable again in no time. Get in touch with us at 304-707-0600 or contact us online to schedule an appointment now.