While your Lennox® HVAC equipment cannot chat with you, it has a procedure to communicate a furnace error.

Its control panel has a set of LED lights that can display a fault code. Depending on the failure, your furnace could show solid or flashing lights.

Though there are various simple HVAC adjustments you can complete without an expert, most services are best handled by experts. When your furnace won’t turn on or give heat, get in touch with House of Heating Incorporated at 715-322-0009 for experienced furnace repair in Marshfield.

Our specialists will swiftly identify and repair the breakdown, even if you don’t use a Lennox heating system. We can fix all types or configuration—and get the warmth returned to your house without delay.

What Does the Flickering Light on My Heater Mean?

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

Correct function includes:

  • Simultaneous slow flash—heating system running properly.
  • Both lights flash fast—furnace is starting to call for heat.

If you see a solitary light going on and off slowly and the other blinking rapidly, your heater might be having a low flame signal. This can happen even when your heating system is running properly. It indicates the flame sensing rod might have buildup or in the incorrect area on the burner. Reach out to us at 715-322-0009 for help.

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

Heater Will Not Start

Here are many of the light sequences you might notice when your heater will not or keep heating. Most of these issues have to be handled by a technician, like one from House of Heating Incorporated.

  1. Both LED lights are extinguished. This means your heater might not be receiving power. Go to the breaker box to make sure the heater fuse is not flipped. Try resetting the fuse if it is in the “off” spot. If it rapidly trips after a subsequent reset, don’t try to reset it again and get in touch with us us at 715-322-0009.
  2. One light is unchanging and the other is flashing slowly. This shows the flame rollout switch is possibly malfunctioning. The component is a critical safety tool that helps in stopping fires and carbon monoxide. You shouldn’t try to repair this issue on your own.
  3. An individual light is flashing fast and the other is flashing slowly. This likely signifies power polarity has been reversed. Your heater could have a wiring issue that requires professional assistance from House of Heating Incorporated.
  4. The pair of lights are flickering slowly. This signifies your heating system’s blower motor probably isn’t running. This component distributes warm air from the heater into your space. We can assist in pinpointing what’s causing an issue with this piece.
  5. A single light is flashing slowly and the other is flickering fast. This indicates your HVAC system could have not enough voltage or a short circuit. Contact our experts at 715-322-0009 for support.
  6. One light is blinking on, on, off while the other flickers on, off, on. This means there may be a fault with your heating system’s control board or wiring. House of Heating Incorporated can locate the problem and handle it.
  7. Both lights display alternate slow flashes. This signifies your HVAC equipment may have a flame failure. There might be an issue with its gas supply, gas valve or ignitor control. Call us at 715-322-0009 for support.
  8. A single light flickers slowly while the other is solid. This typically indicates your heater’s limit switch is malfunctioning. The switch prevents your heater from getting too hot. Call the professionals at House of Heating Incorporated for assistance.

Heating System Blower Works But No Heat

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

  • The duo of lights display every other fast blinks. This means your furnace ignitor might not be in working order. This part ignites fuel in your heating system to make warm air and should be repaired by an expert from House of Heating Incorporated.

Turn to Us for Skilled Furnace Repair

When you have to have your HVAC equipment repaired fast, turn to the professionals at House of Heating Incorporated. Our technicians will take care of the issue quickly and have your space feeling relaxing again soon. Reach out to us at 715-322-0009 or contact us online to schedule an appointment now.