While your Lennox® heating system can’t speak to you, it does have a method to get your attention when there’s a furnace error.

Its control panel has two LED lights that can show a fault code. Based on the problem, your heating system might display continuous or flashing lights.

While there are various elementary heating repairs you can complete on your own, most fixes are best handled by HVAC technicians. When your heater won’t turn on or provide warmth, contact Gilray Heating and Cooling at 715-301-0727 for expert furnace repair in Wausau.

Our experts will speedily discover and take care of the breakdown, even if you don’t have a Lennox heater. We can repair whichever brands or configuration—and get the comfort returned to your house without delay.

What Does the Flickering Light on My Furnace Mean?

Your furnace uses lights to flash code when it isn’t working right. It also uses these lights to let you know it’s operating like it should.

Correct operation consists of:

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

If you notice a solitary light blinking slowly and the other blinking rapidly, your furnace may have a low flame signal. This can take place even when your furnace is running properly. It indicates the flame sensing rod might have buildup or in the bad area on the burner. Call us at 715-301-0727 for assistance.

Here are some of the most common issues for Lennox HVAC systems.

Furnace Will Not Turn On

Here are many of the light patterns you may observe when your heat refuses to or keep heating. The bulk of these problems have to be taken care of by a technician, like one from Gilray Heating and Cooling.

  1. The pair of LED lights are off. This means your heater might not have electricity. Examine the breaker box to confirm the furnace fuse has not flipped. You should reset the fuse if it is in the “off” spot. If it rapidly flips after you reset it, don’t touch the breaker and call us at 715-301-0727.
  2. An individual light is unchanging and the other is blinking slowly. This shows the flame rollout switch is possibly not working right. The switch is a critical safety device that assists in avoiding fires and carbon monoxide. You shouldn’t attempt to handle this issue yourself.
  3. A single light is flickering fast and the other is flickering slowly. This typically signifies power polarity has been transposed. Your heater could have a wiring fault that calls for expert support from Gilray Heating and Cooling.
  4. The duo of lights are flickering slowly. This signifies your furnace’s blower motor probably isn’t working. This component sends hot air from the furnace into your rooms. We can help in figuring out what’s causing an issue with this part.
  5. One light is blinking slowly and the other is blinking rapidly. This signifies your heater might have not enough voltage or a short circuit. Get in touch with our experts at 715-301-0727 for help.
  6. One light is flashing on, on, off while the other flashes on, off, on. This means there might be an issue with your heating system’s motherboard or wiring. Gilray Heating and Cooling can locate the error and handle it.
  7. Both lights are using alternating slow flashes. This means your heater may have a flame issue. There might be a problem with its gas supply, gas valve or ignitor control. Reach out to us at 715-301-0727 for assistance.
  8. A single light flashes slowly while the other is solid. This often indicates your heater’s limit switch is malfunctioning. The switch keeps your heater from overheating. Reach out to the pros at Gilray Heating and Cooling for assistance.

Furnace Blower Operates But No Warm Air

Here’s what may be broken when you notice your heater’s blower fan on, but you aren’t gaining any heated air.

  • Both lights are showing every other quick blinks. This indicates your furnace ignitor could not be in working order. This piece lights energy in your heater to make warm air and should be serviced by a technician from Gilray Heating and Cooling.

Trust Us for Professional Furnace Repair

When you have to have your HVAC equipment repaired quickly, turn to the professionals at Gilray Heating and Cooling. Our pros will repair the fault without delay and have your rooms feeling cozy again in a short time. Get in touch with us at 715-301-0727 or contact us online to request an appointment right away.