While your Lennox® heater cannot talk to you, it does have a process to get your attention when there’s a furnace error.

Its control panel has two LED lights that can share a fault code. Based on the issue, your heater could display continuous or flashing lights.

Though there are a few simple HVAC adjustments you can do on your own, most tasks are best left to HVAC technicians. When your heating system will not kick on or put out heat, get in touch with Northwest Services at 419-548-5017 for experienced furnace repair in Swanton.

Our experts will quickly detect and handle the malfunction, even if you don’t own a Lennox heater. We can fix whichever types or configuration—and get the heat reintroduced to your home quickly.

What Does the Flashing Light on My Heating System Mean?

Your furnace relies on lights to flash code when it requires repairs. It also works this system to let you know it’s heating correctly.

Normal operation involves:

  • Concurrent slow flash—heater heating properly.
  • Concurrent fast flash—heating system is starting to call for heat.

If you realize that a lone light flashing slowly and the other blinking rapidly, your heater may be experiencing a low flame signal. This can take place even when your heating system is heating like it should. It means the flame sensing rod may have buildup or in the incorrect spot on the burner. Call us at 419-548-5017 for support.

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

Heater Will Not Start

Here are some of the light patterns you could notice when your heat won’t turn on or keep operating. The majority of these errors need to be handled by a specialist, like one from Northwest Services.

  1. The pair of LED lights are extinguished. This means your heater might not have electricity. Examine the breaker box to confirm the heater fuse is not tripped. Attempt to reset the fuse if it is in the “off” position. If it rapidly flips following a reset, don’t touch the breaker and contact us at 419-548-5017.
  2. An individual light is unchanging and the other is flickering slowly. This signifies the flame rollout switch is may be open. The component is a critical safety guard that aids in preventing fires and carbon monoxide. You shouldn’t seek to repair this problem without professional help.
  3. An individual light is flashing quickly and the other is blinking slowly. This likely indicates power polarity has been reversed. Your heater might have a wiring error that calls for expert aid from Northwest Services.
  4. All lights are blinking slowly. This signifies your furnace’s blower motor probably isn’t running. 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. A single light is blinking slowly and the other is flashing rapidly. This means your heater could have low voltage or a short circuit. Get in touch with our specialists at 419-548-5017 for assistance.
  6. One light is flashing on, on, off while the other flashes on, off, on. This signifies there may be a malfunction with your HVAC system’s control panel or wiring. Northwest Services can find the fault and handle it.
  7. The pair of lights display every other slow flickers. This means your heater possibly has a flame problem. There may be an issue with its gas supply, gas valve or ignitor control. Reach out to us at 419-548-5017 for help.
  8. An individual light blinks slowly while the other is steady. This usually signifies your HVAC system’s limit switch is malfunctioning. The switch keeps your HVAC system from getting too hot. Call the specialists at Northwest Services for support.

Furnace Blower Operates But No Warm Air

Here’s what could be wrong when you notice your heating equipment’s blower fan working, but you aren’t gaining any warmth.

  • The duo of lights are showing every other quick flickers. This indicates your furnace ignitor could not be working. This component lights gas in your heating system to produce heat and should be serviced by a specialist from Northwest Services.

Depend on Us for Skilled Furnace Repair

When you need to have your heating system repaired without delay, turn to the professionals at Northwest Services. Our techs will take care of the fault without delay and have your house feeling relaxing again soon. Contact us at 419-548-5017 or contact us online to schedule an appointment now.