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

Its motherboard has twin LED lights that can show a fault code. Depending on the malfunction, your furnace could use continuous or flashing lights.

Although there are some simple HVAC fixes you can take care of yourself, many repairs are best left to the professionals. When your heating system won’t turn on or put out heat, call Dearing's Service & Solutions at 812-200-5844 for experienced furnace repair in Huntingburg.

Our specialists will rapidly discover and fix the breakdown, even if you don’t have a Lennox heating system. We can repair any brands or configuration—and get the heat reintroduced to your house quickly.

What Does the Flickering Light on My Furnace Mean?

Your furnace uses lights to flash code when it isn’t working right. It also engages these lights to relay it’s working properly.

Normal function involves:

  • Concurrent slow flash—heater working correctly.
  • Simultaneous fast flash—heating system is beginning to call for heat.

If you realize that a lone light blinking slowly and the other going on and off fast, your furnace could be having a low flame signal. This can happen even when your furnace is operating like it should. It means the flame sensing rod may need to be cleaned or in the bad spot on the burner. Call us at 812-200-5844 for assistance.

Here are several other of the most typical faults for Lennox furnaces.

Heater Won’t Turn On

Here are many of the light arrangements you might notice when your furnace refuses to or keep heating. The majority of these issues have to be fixed by a professional, like one from Dearing's Service & Solutions.

  1. Both LED lights are off. This signifies your heating system might not be receiving power. Find the breaker box to ensure the heater fuse hasn’t triggered. You should reset the fuse if it is in the “off” spot. If it instantly flips following a reset, don’t touch the breaker and call us at 812-200-5844.
  2. One light is stable and the other is flashing slowly. This shows the flame rollout switch is likely not working right. The switch is an essential safety device that aids in stopping fires and carbon monoxide. You shouldn’t seek to repair this problem yourself.
  3. An individual light is blinking rapidly and the other is blinking slowly. This likely indicates power polarity has been transposed. Your heater might have a wiring problem that calls for specialized assistance from Dearing's Service & Solutions.
  4. All lights are blinking slowly. This indicates your furnace’s blower motor possibly isn’t working. This part sends hot air from the heating system into your residence. We can aid in determining what’s causing an issue with this part.
  5. One light is blinking slowly and the other is flickering fast. This means your HVAC system could have not enough voltage or a short circuit. Call our specialists at 812-200-5844 for support.
  6. One light is flickering on, on, off while the other blinks on, off, on. This indicates there could be a malfunction with your heater’s control panel or wiring. Dearing's Service & Solutions can determine the error and fix it.
  7. The duo of lights are using alternate slow flickers. This signifies your heating system possibly has a flame issue. There could be trouble with its gas supply, gas valve or ignitor control. Contact us at 812-200-5844 for help.
  8. A single light flickers slowly while the other remains solid. This often indicates your HVAC system’s limit switch is malfunctioning. The switch stops your heater from becoming too warm. Call the professionals at Dearing's Service & Solutions for help.

Heater Blower Operates But No Warmth

Here’s what might be at fault when you notice your heating equipment’s blower fan running, but you aren’t gaining any heated air.

  • Both lights display every other fast flickers. This indicates your furnace ignitor might be broken. This component kindles energy in your furnace to make warm air and should be repaired by an expert from Dearing's Service & Solutions.

Depend on Us for Professional Furnace Repair

When you need to get your heater in working order fast, turn to the specialists at Dearing's Service & Solutions. Our techs will handle the issue quickly and have your space feeling cozy again soon. Get in touch with us at 812-200-5844 or contact us online to request an appointment today.