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

Its motherboard has double LED lights that can show a fault code. Depending on the malfunction, your furnace could use continuous or flashing lights.

Though there are a few simple furnace fixes you can finish yourself, the majority of services are best taken care of by HVAC technicians. When your heater won’t turn on or provide heat, contact Taylor's Heating & Air Conditioning at 519-296-4437 for skilled furnace repair in Thedford.

Our experts will quickly determine and take care of the issue, even if you don’t own a Lennox heating system. We can service any brands or models—and get the comfort reintroduced to your residence quickly.

What Does the Flickering Light on My Heater Mean?

Your furnace depends on lights to flash code when it is malfunctioning. It also engages this setup to let you know it’s operating correctly.

Correct function consists of:

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

If you notice a lone light going on and off slowly and the other flashing fast, your heating system might have a low flame signal. This can happen even when your heater is heating correctly. It signifies the flame sensing rod may need to be cleaned or in the incorrect spot on the burner. Reach out to us at 519-296-4437 for help.

Here are a few other of the most routine issues for Lennox furnaces.

Furnace Refuses to Start

Here are some of the light patterns you might notice when your heating system will not or keep heating. The bulk of these issues have to be taken care of by an expert, like one from Taylor's Heating & Air Conditioning.

  1. The duo of LED lights are off. This signifies your HVAC system might not have electricity. Find the breaker box to ensure the heating system fuse hasn’t triggered. You should reset the fuse if it is in the “off” spot. If it promptly flips after you reset it, don’t touch the breaker and get in touch with us us at 519-296-4437.
  2. One light is stable and the other is blinking slowly. This signifies the flame rollout switch is likely malfunctioning. The switch is an essential safety tool that assists in preventing fires and carbon monoxide. You shouldn’t seek to handle this malfunction yourself.
  3. A single light is flashing quickly and the other is blinking slowly. This often indicates power polarity has been reversed. Your heater could have a wiring fault that calls for professional help from Taylor's Heating & Air Conditioning.
  4. The duo of lights are flashing slowly. This signifies your heater’s blower motor likely isn’t operating. This component distributes hot air from the heating system into your residence. We can assist in pinpointing what’s wrong with this part.
  5. An individual light is flickering slowly and the other is blinking rapidly. This means your HVAC system could have low voltage or a short circuit. Contact our specialists at 519-296-4437 for support.
  6. One light is flickering on, on, off while the other flickers on, off, on. This indicates there may be trouble with your heater’s motherboard or wiring. Taylor's Heating & Air Conditioning can determine the issue and fix it.
  7. Both lights are using alternate slow flashes. This indicates your HVAC system may have a flame failure. There could be a problem with its gas supply, gas valve or ignitor control. Get in touch with us at 519-296-4437 for assistance.
  8. An individual light blinks slowly while the other stays steady. This typically means your HVAC system’s limit switch is experiencing an error. The switch prevents your HVAC equipment from overheating. Get in touch with the pros at Taylor's Heating & Air Conditioning for assistance.

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 gaining any heated air.

  • The duo of lights are giving alternate rapid blinks. This indicates your furnace ignitor may not be in working order. This part ignites energy in your heating system to create heat and should be serviced by a specialist from Taylor's Heating & Air Conditioning.

Trust Us for Skilled Furnace Repair

When you need to get your heating system in working order quickly, turn to the technicians at Taylor's Heating & Air Conditioning. Our techs will fix the error without delay and have your space feeling comfortable again in a short time. Get in touch with us at 519-296-4437 or contact us online to schedule an appointment today.