While your Lennox® HVAC equipment can’t speak to you, it possesses a process to get your attention when there’s a furnace error.

Its motherboard has double LED lights that can share a fault code. Subject to the failure, your heater may show continuous or flashing lights.

While there are some basic heating fixes you can finish yourself, many fixes are best handled by experts. When your heating system refuses to start or give heated air, get in touch with Farnell Mechanical, Inc. at 334-524-2458 for skilled furnace repair in Auburn and Opelika.

Our experts will speedily determine and repair the malfunction, even if you don’t use a Lennox heater. We can service all kinds or makes—and get the comfort reintroduced to your house without delay.

What Does the Flashing Light on My Furnace Mean?

Your furnace relies on lights to flash code when it requires repairs. It also works these lights to relay it’s working like it should.

Normal operation includes:

  • Simultaneous slow flash—heating system heating properly.
  • Both lights flash fast—heating system is initiating the call for heat.

If you see a lone light flashing slowly and the other flashing quickly, your heating system may have a low flame signal. This can take place even when your furnace is working properly. It signifies the flame sensing rod could be dirty or in the wrong spot on the burner. Contact us at 334-524-2458 for assistance.

Here are some of the most typical problems for Lennox heating systems.

Heating System Refuses to Kick On

Here are some of the light patterns you may observe when your heating system won’t turn on or keep heating. The majority of these issues must be fixed by a professional, for instance from Farnell Mechanical, Inc..

  1. All LED lights are extinguished. This means your HVAC system might not be receiving power. Look at the breaker box to confirm the heating system fuse is not triggered. Try resetting 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 contact us at 334-524-2458.
  2. One light is unchanging and the other is flickering slowly. This implies the flame rollout switch is may be open. The component is a critical safety guard that assists in stopping fires and carbon monoxide. You shouldn’t try to handle this malfunction on your own.
  3. An individual light is blinking rapidly and the other is flickering slowly. This likely signifies power polarity has been inverted. Your heater may have a wiring issue that requires professional help from Farnell Mechanical, Inc..
  4. All lights are flickering slowly. This signifies your furnace’s blower motor probably isn’t operating. This part moves warm air from the HVAC system into your space. We can assist in determining what’s causing a problem with this piece.
  5. A single light is flashing slowly and the other is blinking rapidly. This indicates your heater may have not enough voltage or a short circuit. Get in touch with our specialists at 334-524-2458 for support.
  6. One light is flashing on, on, off while the other flashes on, off, on. This means there could be a fault with your HVAC system’s control board or wiring. Farnell Mechanical, Inc. can locate the problem and take care of it.
  7. The pair of lights are using alternate slow blinks. This indicates your heating system likely has a flame error. There might be a problem with its gas supply, gas valve or ignitor control. Contact us at 334-524-2458 for help.
  8. A single light blinks slowly while the other remains continuous. This usually signifies your heating system’s limit switch is experiencing an error. The switch stops your heating system from becoming too warm. Get in touch with the pros at Farnell Mechanical, Inc. for assistance.

Furnace Blower Operates But No Warmth

Here’s what could be at fault when you notice your heater’s blower fan working, but you aren’t gaining any warmth.

  • The duo of lights are giving alternate quick flickers. This signifies your furnace ignitor might be broken. This part kindles energy in your furnace to make heat and should be repaired by an expert from Farnell Mechanical, Inc..

Trust Us for Expert Furnace Repair

When you need to get your heater repaired fast, trust the specialists at Farnell Mechanical, Inc.. Our technicians will take care of the issue quickly and have your house feeling relaxing again in a short time. Contact us at 334-524-2458 or contact us online to get an appointment now.