While your Lennox® heater can’t speak to you, it has a process to tell you about a furnace error.

Its control panel has twin LED lights that can share a fault code. Based on the malfunction, your heater could show continuous or flashing lights.

While there are various basic heating repairs you can take care of yourself, many repairs are best handled by the professionals. When your heater will not start or put out heat, contact Connolly Electric & Mechanical at 928-251-4327 for skilled furnace repair in Cottonwood & Prescott.

Our technicians will quickly detect and handle the problem, even if you don’t use a Lennox heating system. We can service whichever types or models—and get the comfort reintroduced to your home without delay.

What Does the Flickering Light on My Heating System Mean?

Your heating system relies on lights to flash code when it is malfunctioning. It also uses this system to tell you it’s heating correctly.

Normal function consists of:

  • Concurrent slow flash—heater working properly.
  • Simultaneous fast flash—heater is starting to call for heat.

If you notice a solitary light going on and off slowly and the other going on and off quickly, your heater could be experiencing a low flame signal. This can happen even when your heating system is heating correctly. It indicates the flame sensing rod might have buildup or in the bad spot on the burner. Call us at 928-251-4327 for help.

Here are a few other of the most routine issues for Lennox HVAC systems.

Heating System Refuses to Kick On

Here are a few of the light sequences you might notice when your heat will not or keep operating. The bulk of these problems need to be taken care of by a specialist, like one from Connolly Electric & Mechanical.

  1. The duo of LED lights aren’t lit. This means your heater might not have electricity. Find the breaker box to ensure the furnace fuse hasn’t tripped. Try resetting the fuse if it’s in the “off” position. If it immediately trips after you reset it, don’t touch the breaker and call us at 928-251-4327.
  2. One light is unchanging and the other is blinking slowly. This implies the flame rollout switch is possibly open. The part is an essential safety mechanism that helps in preventing fires and carbon monoxide. You shouldn’t attempt to take care of this issue on your own.
  3. An individual light is flickering quickly and the other is blinking slowly. This typically signifies power polarity has been reversed. Your heater may have a wiring issue that calls for professional help from Connolly Electric & Mechanical.
  4. All lights are blinking slowly. This indicates your heating system’s blower motor probably isn’t running. This part distributes heated air from the heating system into your house. We can aid in determining what’s wrong with this component.
  5. A single light is blinking slowly and the other is flickering fast. This indicates your heater might have low voltage or a short circuit. Call our specialists at 928-251-4327 for assistance.
  6. One light is flashing on, on, off while the other blinks on, off, on. This means there could be an issue with your HVAC system’s control panel or wiring. Connolly Electric & Mechanical can locate the error and repair it.
  7. The pair of lights are using every other slow flickers. This indicates your heater likely has a flame failure. There could be a problem with its gas supply, gas valve or ignitor control. Call us at 928-251-4327 for support.
  8. A single 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 heating system from overheating. Get in touch with the professionals at Connolly Electric & Mechanical for help.

Heater Blower Works But No Warmth

Here’s what may be at fault when you observe your heating system’s blower fan working, but you aren’t getting any heated air.

  • The duo of lights are giving every other quick flashes. This means your furnace ignitor might not be working. This part kindles gas in your HVAC equipment to make warmth and should be fixed by an expert from Connolly Electric & Mechanical.

Depend on Us for Expert Furnace Repair

When you have to have your heater fixed fast, turn to the professionals at Connolly Electric & Mechanical. Our techs will take care of the fault right away and have your house feeling cozy again in no time. Contact us at 928-251-4327 or contact us online to request an appointment today.