While your Lennox® heating system cannot speak to you, it has a method to communicate a furnace error.

Its control board has twin LED lights that can display a fault code. Depending on the problem, your heating system might use solid or flashing lights.

While there are various simple furnace repairs you can do on your own, most repairs are best handled by the professionals. When your heating system refuses to start or put out warmth, get in touch with Scott Temperature at 785-269-0465 for experienced furnace repair in Lawrence.

Our technicians will swiftly determine and handle the malfunction, even if you don’t use a Lennox heating system. We can service whichever types or models—and get the warmth reintroduced to your home fast.

What Does the Blinking Light on My Furnace Mean?

Your heating system depends on lights to flash code when it requires repairs. It also engages these lights to let you know it’s heating properly.

Regular function consists of:

  • Concurrent slow flash—furnace running like it should.
  • Both lights flash fast—furnace is starting to call for heat.

If you see a lone light blinking slowly and the other flashing quickly, your furnace might have a low flame signal. This can occur even when your furnace is running properly. It means the flame sensing rod might be dirty or in the wrong area on the burner. Contact us at 785-269-0465 for help.

Here are several other of the most typical problems for Lennox heaters.

Heating System Won’t Start

Here are a few of the light patterns you could notice when your furnace refuses to or keep heating. The bulk of these errors need to be taken care of by a specialist, like one from Scott Temperature.

  1. The duo of LED lights are off. This means your heating system might not have power. Go to the breaker box to make sure the heating system fuse has not triggered. Try resetting the fuse if it’s in the “off” spot. If it instantly flips after a subsequent reset, don’t touch the breaker and call us at 785-269-0465.
  2. A single light is stable and the other is flashing slowly. This signifies the flame rollout switch is may be open. The component is an essential safety mechanism that helps in stopping fires and carbon monoxide. You shouldn’t seek to handle this problem without professional help.
  3. An individual light is flashing rapidly and the other is flickering slowly. This often signifies power polarity has been reversed. Your furnace may have a wiring issue that needs professional assistance from Scott Temperature.
  4. Both lights are blinking slowly. This indicates your heater’s blower motor possibly isn’t operating. This part sends warm air from the HVAC system into your residence. We can aid in figuring out what’s causing a problem with this piece.
  5. A single light is blinking slowly and the other is flickering quickly. This signifies your HVAC system may have insufficient voltage or a short circuit. Contact our specialists at 785-269-0465 for help.
  6. One light is flickering on, on, off while the other flashes on, off, on. This signifies there might be a fault with your heating system’s control board or wiring. Scott Temperature can pinpoint the issue and fix it.
  7. The pair of lights display alternate slow flickers. This means your HVAC system may have a flame issue. There could be a problem with its gas supply, gas valve or ignitor control. Contact us at 785-269-0465 for support.
  8. An individual light flashes slowly while the other remains continuous. This often signifies your HVAC equipment’s limit switch is not working. The switch stops your heater from overheating. Reach out to the experts at Scott Temperature for support.

Heating System Blower Works But No Heat

Here’s what may be at fault when you hear your heater’s blower fan on, but you aren’t getting any heated air.

  • Both lights are showing every other quick blinks. This means your furnace ignitor might not be in working order. This part lights gas in your heater to create heat and should be fixed by an expert from Scott Temperature.

Trust Us for Expert Furnace Repair

When you need to get your heater fixed without delay, trust the professionals at Scott Temperature. Our pros will handle the error without delay and have your residence feeling relaxing again soon. Contact us at 785-269-0465 or contact us online to get an appointment now.