Furnace troubleshooting

Top Lennox® Furnace Error Codes (and What They Mean)

While your Lennox® furnace cannot speak to you, it possesses a method to get your attention when there’s a furnace error.

Its control panel has twin LED lights that can show a fault code. Subject to the failure, your furnace could show solid or flashing lights.

Though there are a few elementary heating adjustments you can take care of yourself, the majority of tasks are best taken care of by experts. When your heater won’t kick on or deliver heated air, get in touch with Kirkfield Heating & Air Conditioning at 204-272-8128 for expert furnace repair in Winnipeg.

Our specialists will speedily pinpoint and handle the problem, even if you don’t use a Lennox furnace. We can service all types or configuration—and get the comfort reintroduced to your residence without delay.


What Does the Flickering Light on My Heating System Mean?

Your furnace depends on lights to flash code when it is malfunctioning. It also uses this setup to tell you it’s working correctly.

Regular heating includes:

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

If you see a lone light going on and off slowly and the other blinking rapidly, your furnace might be experiencing a low flame signal. This can happen even when your furnace is heating properly. It means the flame sensing rod might need to be cleaned or in the wrong location on the burner. Call us at 204-272-8128 for support.

Here are several other of the most typical errors for Lennox heating systems.

Heater Refuses to Kick On

Here are a few of the light sequences you might see when your heat won’t turn on or keep operating. The bulk of these issues must be taken care of by a technician, such as one from Kirkfield Heating & Air Conditioning.

  1. All LED lights are off. This means your heating system might not be receiving power. Check the breaker box to make sure the heating system fuse hasn’t flipped. You should reset the fuse if it has moved into the “off” position. If it rapidly flips after a subsequent reset, don’t try to reset it again and get in touch with us us at 204-272-8128.
  2. One light is unchanging and the other is flashing slowly. This signifies the flame rollout switch is probably open. The component is a critical safety tool that helps in preventing fires and carbon monoxide. You shouldn’t seek to repair this fault on your own.
  3. A single light is flashing fast and the other is flickering slowly. This typically indicates power polarity has been reversed. Your furnace could have a wiring issue that requires professional aid from Kirkfield Heating & Air Conditioning.
  4. The pair of lights are flashing slowly. This signifies your heating system’s blower motor likely isn’t running. This part circulates hot air from the HVAC system into your rooms. We can assist in pinpointing what’s causing a problem with this piece.
  5. One light is flashing slowly and the other is flashing rapidly. This signifies your heating system could have low voltage or a short circuit. Contact our professionals at 204-272-8128 for help.
  6. One light is flickering on, on and off while the other flashes on, off, on. This indicates there might be an issue with your furnace’s control board or wiring. Kirkfield Heating & Air Conditioning can determine the issue and fix it.
  7. The pair of lights are using every other slow flashes. This means your furnace likely has a flame issue. There could be an issue with its gas supply, gas valve or ignitor control. Call us at 204-272-8128 for assistance.
  8. A single light blinks slowly while the other stays steady. This usually indicates your HVAC system’s limit switch is open. The switch stops your furnace from becoming too warm. Contact the experts at Kirkfield Heating & Air Conditioning for help.

Heater Blower Runs But No Warmth

Here’s what may be at fault when you notice your furnace’s blower fan working, but you aren’t getting any warm air.

  • The pair of lights are showing every other rapid blinks. This signifies your furnace ignitor could be broken. This component ignites gas in your heater to produce heat and should be serviced by a specialist from Kirkfield Heating & Air Conditioning.

Depend on Us for Professional Furnace Repair

When you have to get your furnace in working order without delay, trust the experts at Kirkfield Heating & Air Conditioning. Our technicians will take care of the error without delay and have your residence feeling cozy again in no time. Reach out to us at 204-272-8128 or contact us online to get an appointment today.

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