While your Lennox® heater isn’t able to speak to you, it has a process to get your attention when there’s a furnace error.

Its motherboard has double LED lights that can show a fault code. Based on the issue, your heating system may display continuous or flashing lights.

Although there are some simple HVAC repairs you can do yourself, the majority of services are best taken care of by the professionals. When your heating system refuses to turn on or provide warm air, contact Patterson & Stirling at 814-308-0416 for professional furnace repair in Erie.

Our experts will speedily detect and take care of the breakdown, even if you don’t own a Lennox heating system. We can fix any types or makes—and get the warmth reintroduced to your residence without delay.

What Does the Flickering Light on My Heating System Mean?

Your heating system relies on lights to flash code when it isn’t working right. It also engages this system to let you know it’s heating correctly.

Regular heating consists of:

  • Concurrent slow flash—heating system heating like it should.
  • Both lights flash fast—furnace is beginning to call for heat.

If you realize that a single light flashing slowly and the other flashing rapidly, your furnace could be having a low flame signal. This can take place even when your furnace is working like it should. It indicates the flame sensing rod could need to be cleaned or in the incorrect spot on the burner. Reach out to us at 814-308-0416 for support.

Here are a few other of the most common errors for Lennox HVAC systems.

Heating System Refuses to Kick On

Here are a few of the light arrangements you could observe when your furnace won’t turn on or keep heating. The majority of these problems must be taken care of by a specialist, like one from Patterson & Stirling.

  1. Both LED lights aren’t lit. This signifies your heating system might not be receiving power. Find the breaker box to confirm the furnace fuse isn’t tripped. Attempt to reset the fuse if it’s in the “off” area. If it immediately trips after a subsequent reset, don’t try to reset it again and get in touch with us us at 814-308-0416.
  2. An individual light is unchanging and the other is flickering slowly. This shows the flame rollout switch is may be malfunctioning. The part is a critical safety guard that aids in stopping fires and carbon monoxide. You shouldn’t try to handle this issue without professional help.
  3. One light is flashing rapidly and the other is flashing slowly. This likely indicates power polarity has been inverted. Your heating system could have a wiring fault that calls for professional aid from Patterson & Stirling.
  4. All lights are flashing slowly. This signifies your heating system’s blower motor probably isn’t operating. This component distributes heated air from the furnace into your residence. We can assist in figuring out what’s causing an issue with this component.
  5. A single light is flashing slowly and the other is flickering quickly. This means your heater may have low voltage or a short circuit. Contact our technicians at 814-308-0416 for support.
  6. One light is flickering on, on, off while the other flickers on, off, on. This indicates there could be an issue with your HVAC system’s control panel or wiring. Patterson & Stirling can find the issue and repair it.
  7. Both lights are using alternate slow flashes. This means your heater may have a flame issue. There might be an issue with its gas supply, gas valve or ignitor control. Get in touch with us at 814-308-0416 for support.
  8. An individual light blinks slowly while the other remains continuous. This often indicates your HVAC equipment’s limit switch is not working. The switch stops your heating system from becoming too warm. Reach out to the professionals at Patterson & Stirling for assistance.

Heater Blower Operates But No Heat

Here’s what could be at fault when you hear your heating system’s blower fan on, but you aren’t gaining any warm air.

  • The pair of lights display alternate rapid flashes. This means your furnace ignitor might be broken. This part kindles fuel in your heating system to make heat and should be repaired by a technician from Patterson & Stirling.

Turn to Us for Professional Furnace Repair

When you need to get your heater fixed fast, trust the specialists at Patterson & Stirling. Our pros will fix the issue quickly and have your residence feeling relaxing again soon. Reach out to us at 814-308-0416 or contact us online to request an appointment today.