While your Lennox® HVAC equipment isn’t able to speak to you, it possesses a method to tell you about a furnace error.

Its motherboard has a set of LED lights that can show a fault code. Subject to the fault, your heating system may use solid or flashing lights.

While there are certain simple heating fixes you can take care of without an expert, many tasks are best handled by experts. When your heating system will not start or put out warmth, reach out to Tri City Fuel & Heating at 803-265-4208 for expert furnace repair in West Columbia.

Our specialists will speedily detect and fix the problem, even if you don’t use a Lennox heater. We can service any brands or makes—and get the heat returned to your residence quickly.

What Does the Flickering Light on My Heater Mean?

Your heater depends on lights to flash code when it isn’t working right. It also works this system to relay it’s operating like it should.

Correct heating involves:

  • Concurrent slow flash—heating system heating properly.
  • Simultaneous 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 might be having a low flame signal. This can take place even when your furnace is heating correctly. It indicates the flame sensing rod may have buildup or in the wrong location on the burner. Call us at 803-265-4208 for support.

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

Heating System Won’t Turn On

Here are some of the light sequences you may observe when your heating system refuses to or keep heating. The majority of these errors need to be fixed by a professional, such as one from Tri City Fuel & Heating.

  1. Both LED lights are off. This means your HVAC system might not have electricity. Go to the breaker box to make sure the heating system fuse hasn’t tripped. Try resetting the fuse if it is in the “off” area. If it rapidly trips after a subsequent reset, don’t touch the breaker and call us at 803-265-4208.
  2. An individual light is unchanging and the other is flickering slowly. This implies the flame rollout switch is may be open. The switch is a critical safety guard that assists in stopping fires and carbon monoxide. You shouldn’t attempt to repair this fault without professional help.
  3. One light is flashing rapidly and the other is flickering slowly. This typically indicates power polarity has been transposed. Your heating system might have a wiring error that calls for specialized help from Tri City Fuel & Heating.
  4. All lights are flickering slowly. This signifies your heater’s blower motor probably isn’t operating. This part moves hot air from the HVAC system into your home. We can aid in determining what’s causing an issue with this part.
  5. A single light is blinking slowly and the other is blinking rapidly. This means your heater could have not enough voltage or a short circuit. Get in touch with our technicians at 803-265-4208 for help.
  6. One light is blinking on, on, off while the other flickers on, off, on. This indicates there may be an issue with your HVAC system’s motherboard or wiring. Tri City Fuel & Heating can determine the problem and repair it.
  7. Both lights show every other slow flashes. This means your heating system likely has a flame issue. There may be a problem with its gas supply, gas valve or ignitor control. Get in touch with us at 803-265-4208 for support.
  8. A single light flashes slowly while the other remains solid. This often means your HVAC equipment’s limit switch is malfunctioning. The switch keeps your heater from getting too hot. Call the pros at Tri City Fuel & Heating for help.

Furnace Blower Works But No Warm Air

Here’s what may be wrong when you notice your heater’s blower fan running, but you aren’t getting any warmth.

  • Both lights are showing every other rapid blinks. This indicates your furnace ignitor might be broken. This component lights energy in your HVAC equipment to create heat and should be repaired by a specialist from Tri City Fuel & Heating.

Depend on Us for Skilled Furnace Repair

When you need to have your HVAC equipment fixed without delay, turn to the experts at Tri City Fuel & Heating. Our pros will take care of the fault quickly and have your space feeling cozy again in no time. Get in touch with us at 803-265-4208 or contact us online to schedule an appointment now.