While your Lennox® furnace isn’t able to speak to you, it does have a procedure to get your attention when there’s a furnace error.

Its control panel has two LED lights that can show a fault code. Depending on the problem, your furnace may use continuous or flashing lights.

While there are a few basic furnace fixes you can finish on your own, most tasks are best handled by experts. When your heater will not start or provide warmth, contact Integrity AC & Heating LLC at 602-971-0567 for skilled furnace repair in Phoenix.

Our technicians will quickly discover and take care of the breakdown, even if you don’t have a Lennox heater. We can service any kinds or makes—and get the warmth reintroduced to your house fast.

What Does the Blinking Light on My Heating System Mean?

Your heater uses lights to flash code when it requires repairs. It also uses these lights to let you know it’s heating properly.

Regular heating consists of:

  • Simultaneous slow flash—heater working correctly.
  • Both lights flash fast—heater is starting to call for heat.

If you notice a lone light blinking slowly and the other blinking quickly, your furnace might have a low flame signal. This can take place even when your furnace is operating like it should. It signifies the flame sensing rod could be dirty or in the incorrect spot on the burner. Reach out to us at 602-971-0567 for assistance.

Here are a few other of the most typical problems for Lennox heaters.

Furnace Won’t Turn On

Here are some of the light sequences you may observe when your heating system will not or keep operating. Most of these issues must be taken care of by a professional, such as one from Integrity AC & Heating LLC.

  1. The pair of LED lights aren’t lit. This signifies your heater might not be receiving power. Go to the breaker box to make sure the heating system fuse is not tripped. You should reset the fuse if it’s in the “off” position. If it immediately flips following a reset, don’t try to reset it again and contact us at 602-971-0567.
  2. An individual light is stable and the other is flickering slowly. This implies the flame rollout switch is possibly not working right. The part is an essential safety tool that assists in stopping fires and carbon monoxide. You shouldn’t seek to repair this problem without professional help.
  3. A single light is flickering fast and the other is blinking slowly. This likely indicates power polarity has been inverted. Your heating system may have a wiring fault that requires specialized help from Integrity AC & Heating LLC.
  4. Both lights are blinking slowly. This indicates your heater’s blower motor possibly isn’t working. This piece sends hot air from the furnace into your rooms. We can aid in pinpointing what’s causing a problem with this component.
  5. One light is blinking slowly and the other is flickering rapidly. This means your heating system may have low voltage or a short circuit. Call our specialists at 602-971-0567 for assistance.
  6. One light is flickering on, on, off while the other flickers on, off, on. This signifies there might be a malfunction with your HVAC system’s control board or wiring. Integrity AC & Heating LLC can determine the error and fix it.
  7. The pair of lights are using alternating slow flashes. This means your HVAC equipment may have a flame failure. There might be trouble with its gas supply, gas valve or ignitor control. Get in touch with us at 602-971-0567 for help.
  8. A single light blinks slowly while the other is steady. This usually indicates your HVAC equipment’s limit switch is malfunctioning. The switch keeps your HVAC system from overheating. Get in touch with the pros at Integrity AC & Heating LLC for help.

Heater Blower Works But No Warm Air

Here’s what might be broken when you observe your heating system’s blower fan running, but you aren’t getting any warm air.

  • Both lights display every other quick flickers. This indicates your furnace ignitor could not be in working order. This component ignites gas in your furnace to make heat and should be repaired by a specialist from Integrity AC & Heating LLC.

Turn to Us for Expert Furnace Repair

When you need to have your heating system fixed fast, turn to the professionals at Integrity AC & Heating LLC. Our technicians will handle the issue without delay and have your rooms feeling cozy again in a short time. Get in touch with us at 602-971-0567 or contact us online to request an appointment now.