While your Lennox® heater can’t chat with you, it has a way to communicate a furnace error.

Its motherboard has twin LED lights that can share a fault code. Depending on the malfunction, your heater might use solid or flashing lights.

Though there are a few elementary HVAC adjustments you can finish yourself, many tasks are best left to the professionals. When your heater won’t kick on or deliver warmth, contact GLR Mechanical at 570-309-0403 for professional furnace repair in Wilkes Barre and Scranton.

Our specialists will speedily identify and take care of the issue, even if you don’t own a Lennox heating system. We can repair whichever kinds or makes—and get the heat returned to your home fast.

What Does the Flashing Light on My Heating System Mean?

Your heating system depends on lights to flash code when it requires repairs. It also uses these lights to let you know it’s working like it should.

Normal heating involves:

  • Concurrent slow flash—heater running correctly.
  • Both lights flash fast—heating system is beginning to call for heat.

If you realize that a solitary light flashing slowly and the other flashing rapidly, your heater could have a low flame signal. This can occur even when your heater is heating properly. It indicates the flame sensing rod may be dirty or in the bad area on the burner. Contact us at 570-309-0403 for assistance.

Here are several other of the most common faults for Lennox furnaces.

Heater Refuses to Kick On

Here are some of the light sequences you could observe when your heater refuses to or keep operating. The majority of these errors have to be repaired by an expert, like one from GLR Mechanical.

  1. All LED lights aren’t lit. This signifies your heater might not have power. Go to the breaker box to ensure the furnace fuse has not flipped. Try resetting the fuse if it is in the “off” position. If it rapidly trips after you reset it, don’t touch the breaker and call us at 570-309-0403.
  2. One light is continuous and the other is flickering slowly. This signifies the flame rollout switch is likely not working right. The component is a critical safety device that aids in preventing fires and carbon monoxide. You shouldn’t try to fix this issue yourself.
  3. One light is flickering quickly and the other is flashing slowly. This typically indicates power polarity has been transposed. Your heating system might have a wiring error that needs expert assistance from GLR Mechanical.
  4. Both lights are blinking slowly. This means your heater’s blower motor possibly isn’t running. This piece moves hot air from the heating system into your rooms. We can help in determining what’s wrong with this part.
  5. An individual light is flashing slowly and the other is flashing rapidly. This signifies your heater might have low voltage or a short circuit. Contact our specialists at 570-309-0403 for assistance.
  6. One light is blinking on, on, off while the other blinks on, off, on. This indicates there could be trouble with your HVAC system’s motherboard or wiring. GLR Mechanical can find the error and take care of it.
  7. Both lights are using alternate slow flashes. This signifies your HVAC system possibly has a flame problem. There could be a problem with its gas supply, gas valve or ignitor control. Call us at 570-309-0403 for assistance.
  8. An individual light flickers slowly while the other is steady. This usually signifies your HVAC system’s limit switch is not working. The switch keeps your HVAC system from becoming too warm. Reach out to the experts at GLR Mechanical for assistance.

Heater Blower Works But No Heat

Here’s what could be broken when you hear your heating equipment’s blower fan running, but you aren’t gaining any warmth.

  • Both lights display alternate quick flashes. This means your furnace ignitor may not be in working order. This component lights gas in your heating system to create warmth and should be fixed by an expert from GLR Mechanical.

Turn to Us for Professional Furnace Repair

When you need to get your HVAC equipment fixed fast, turn to the technicians at GLR Mechanical. Our techs will repair the issue right away and have your house feeling cozy again in a short time. Get in touch with us at 570-309-0403 or contact us online to request an appointment right away.