While your Lennox® heater isn’t able to speak to you, it has a method to communicate a furnace error.

Its motherboard has twin LED lights that can display a fault code. Based on the malfunction, your heater might show continuous or flashing lights.

Although there are some simple heating adjustments you can finish without an expert, most fixes are best handled by the professionals. When your furnace refuses to kick on or deliver heat, call Fairfield Heating & Cooling at 740-331-4331 for experienced furnace repair in Lancaster.

Our experts will speedily determine and fix the issue, even if you don’t own a Lennox heating system. We can repair any types or makes—and get the warmth reintroduced to your residence quickly.

What Does the Flashing Light on My Heating System Mean?

Your heater relies on lights to flash code when it requires repairs. It also uses this setup to relay it’s heating like it should.

Normal heating consists of:

  • Simultaneous slow flash—furnace heating properly.
  • Both lights flash fast—heater is starting to call for heat.

If you realize that a lone light flashing slowly and the other flashing quickly, your heater might have a low flame signal. This can take place even when your heater is heating like it should. It signifies the flame sensing rod may need to be cleaned or in the wrong spot on the burner. Call us at 740-331-4331 for support.

Here are a few other of the most routine errors for Lennox heating systems.

Heating System Will Not Turn On

Here are a few of the light patterns you may observe when your heating system refuses to or keep operating. The majority of these issues need to be repaired by an expert, such as one from Fairfield Heating & Cooling.

  1. All LED lights aren’t lit. This means your HVAC system might not have electricity. Look at the breaker box to ensure the heater fuse isn’t triggered. Try resetting the fuse if it’s in the “off” position. If it rapidly trips following a reset, don’t try to reset it again and get in touch with us us at 740-331-4331.
  2. A single light is continuous and the other is blinking slowly. This implies the flame rollout switch is may be not working right. The switch is an essential safety tool that helps in avoiding fires and carbon monoxide. You shouldn’t try to repair this issue without professional help.
  3. An individual light is flashing fast and the other is flashing slowly. This often means power polarity has been transposed. Your furnace may have a wiring error that requires expert support from Fairfield Heating & Cooling.
  4. Both lights are flashing slowly. This means your heating system’s blower motor probably isn’t operating. This part sends heated air from the furnace into your rooms. We can assist in figuring out what’s wrong with this component.
  5. An individual light is flickering slowly and the other is flickering fast. This signifies your HVAC system might have low voltage or a short circuit. Contact our experts at 740-331-4331 for assistance.
  6. One light is flickering on, on, off while the other blinks on, off, on. This means there could be an issue with your heating system’s control panel or wiring. Fairfield Heating & Cooling can determine the error and fix it.
  7. Both lights display alternate slow blinks. This indicates your heater likely has a flame failure. There might be trouble with its gas supply, gas valve or ignitor control. Call us at 740-331-4331 for support.
  8. An individual light flickers slowly while the other stays continuous. This usually means your HVAC equipment’s limit switch is experiencing an error. The switch prevents your HVAC system from becoming too warm. Get in touch with the pros at Fairfield Heating & Cooling for help.

Furnace Blower Runs But No Heat

Here’s what could be wrong when you hear your heater’s blower fan on, but you aren’t getting any warmth.

  • Both lights display every other fast flashes. This indicates your furnace ignitor might not be in working order. This piece kindles energy in your heating system to make warm air and should be repaired by an expert from Fairfield Heating & Cooling.

Trust Us for Expert Furnace Repair

When you have to have your heater repaired quickly, trust the professionals at Fairfield Heating & Cooling. Our pros will repair the issue without delay and have your rooms feeling cozy again soon. Contact us at 740-331-4331 or contact us online to request an appointment right away.