While your Lennox® heating system isn’t able to chat with you, it does have a way to tell you about a furnace error.

Its control board has twin LED lights that can show a fault code. Subject to the failure, your furnace might show continuous or flashing lights.

While there are some elementary heating adjustments you can do yourself, many fixes are best handled by experts. When your heater will not turn on or deliver heat, call Smyth Air Conditioning at 561-533-6066 for expert furnace repair in Lake Worth.

Our technicians will swiftly determine and take care of the breakdown, even if you don’t own a Lennox heating system. We can repair all types or makes—and get the heat reintroduced to your house quickly.

What Does the Flashing Light on My Furnace Mean?

Your heating system uses lights to flash code when it isn’t working right. It also uses these lights to tell you it’s working properly.

Normal function includes:

  • Simultaneous slow flash—furnace running properly.
  • Concurrent fast flash—heater is starting to call for heat.

If you notice a solitary light going on and off slowly and the other going on and off quickly, your heater might be having a low flame signal. This can happen even when your furnace is heating like it should. It indicates the flame sensing rod could be dirty or in the incorrect spot on the burner. Contact us at 561-533-6066 for assistance.

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

Heating System Will Not Turn On

Here are many of the light patterns you may notice when your heating system won’t turn on or keep operating. The majority of these problems have to be handled by an expert, such as one from Smyth Air Conditioning.

  1. The duo of LED lights aren’t lit. This indicates your heater might not have electricity. Examine the breaker box to ensure the furnace fuse isn’t tripped. Attempt to reset the fuse if it is in the “off” spot. If it rapidly turns off following a reset, don’t try to reset it again and call us at 561-533-6066.
  2. An individual light is stable and the other is flashing slowly. This signifies the flame rollout switch is may be open. The part is a critical safety device that assists in avoiding fires and carbon monoxide. You shouldn’t try to repair this fault without professional help.
  3. One light is flashing rapidly and the other is blinking slowly. This typically indicates power polarity has been inverted. Your furnace could have a wiring issue that requires specialized support from Smyth Air Conditioning.
  4. The pair of lights are flickering slowly. This signifies your heating system’s blower motor possibly isn’t working. This component moves heated air from the HVAC system into your rooms. We can assist in pinpointing what’s causing an issue with this piece.
  5. One light is flickering slowly and the other is flickering rapidly. This signifies your HVAC system could have low voltage or a short circuit. Get in touch with our technicians at 561-533-6066 for support.
  6. One light is flickering on, on, off while the other flashes on, off, on. This signifies there could be a malfunction with your heater’s motherboard or wiring. Smyth Air Conditioning can pinpoint the error and take care of it.
  7. The duo of lights show alternating slow flickers. This signifies your heater may have a flame error. There may be an issue with its gas supply, gas valve or ignitor control. Call us at 561-533-6066 for help.
  8. A single light blinks slowly while the other is continuous. This often means your heating system’s limit switch is not working. The switch stops your HVAC equipment from overheating. Call the professionals at Smyth Air Conditioning for help.

Heater Blower Runs But No Heat

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

  • The duo of lights are showing alternate fast flickers. This means your furnace ignitor might not be in working order. This component kindles fuel in your heater to produce heat and should be repaired by an expert from Smyth Air Conditioning.

Turn to Us for Expert Furnace Repair

When you have to have your heater repaired without delay, turn to the experts at Smyth Air Conditioning. Our technicians will take care of the issue right away and have your residence feeling cozy again soon. Reach out to us at 561-533-6066 or contact us online to schedule an appointment right away.