While your Lennox® furnace can’t talk to you, it possesses a process to communicate a furnace error.

Its control board has two LED lights that can share a fault code. Depending on the failure, your heater might show continuous or flashing lights.

Though there are various simple furnace repairs you can take care of without an expert, the majority of tasks are best handled by HVAC technicians. When your heater will not start or deliver warmth, contact North Mechanical Heating and Cooling at 928-263-8570 for professional furnace repair in Payson.

Our experts will speedily identify and repair the problem, even if you don’t have a Lennox heating system. We can repair whichever types or makes—and get the warmth returned to your home quickly.

What Does the Blinking Light on My Heating System Mean?

Your furnace relies on lights to flash code when it is malfunctioning. It also works this setup to let you know it’s operating like it should.

Correct heating involves:

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

If you realize that a single light flashing slowly and the other going on and off fast, your heater could be experiencing a low flame signal. This can occur even when your heater is running like it should. It signifies the flame sensing rod could have buildup or in the bad area on the burner. Reach out to us at 928-263-8570 for help.

Here are several other of the most routine issues for Lennox furnaces.

Heating System Won’t Start

Here are many of the light arrangements you could see when your heat will not or keep heating. Most of these issues must be handled by a professional, like one from North Mechanical Heating and Cooling.

  1. The duo of LED lights are extinguished. This indicates your heater might not be receiving power. Look at the breaker box to make sure the furnace fuse hasn’t tripped. You should reset the fuse if it is in the “off” position. If it instantly turns off after you reset it, don’t try to reset it again and get in touch with us us at 928-263-8570.
  2. An individual light is unchanging and the other is blinking slowly. This signifies the flame rollout switch is likely not working right. The part is a critical safety tool that aids in stopping fires and carbon monoxide. You shouldn’t seek to fix this fault on your own.
  3. One light is flickering quickly and the other is flickering slowly. This typically indicates power polarity has been inverted. Your furnace could have a wiring fault that requires professional aid from North Mechanical Heating and Cooling.
  4. All lights are flickering slowly. This means your heating system’s blower motor possibly isn’t running. This piece moves hot air from the HVAC system into your space. We can aid in determining what’s wrong with this component.
  5. One light is flashing slowly and the other is flickering fast. This indicates your HVAC system may have insufficient voltage or a short circuit. Get in touch with our experts at 928-263-8570 for assistance.
  6. One light is flashing on, on, off while the other flashes on, off, on. This indicates there might be trouble with your heating system’s motherboard or wiring. North Mechanical Heating and Cooling can determine the problem and repair it.
  7. The duo of lights show alternate slow flashes. This indicates your HVAC system likely has a flame problem. There might be an issue with its gas supply, gas valve or ignitor control. Reach out to us at 928-263-8570 for help.
  8. An individual light blinks slowly while the other remains solid. This usually means your heating system’s limit switch is not working. The switch stops your heater from getting too hot. Call the professionals at North Mechanical Heating and Cooling for support.

Furnace Blower Operates But No Warmth

Here’s what might be wrong when you notice your heating system’s blower fan working, but you aren’t getting any heated air.

  • Both lights are giving every other rapid flickers. This signifies your furnace ignitor could not be working. This part lights energy in your heating system to produce heat and should be serviced by a specialist from North Mechanical Heating and Cooling.

Turn to Us for Expert Furnace Repair

When you need to get your heater fixed fast, trust the specialists at North Mechanical Heating and Cooling. Our technicians will handle the error right away and have your residence feeling cozy again soon. Reach out to us at 928-263-8570 or contact us online to schedule an appointment now.