Furnace troubleshooting

Most Frequent Lennox® Furnace Error Codes (and What They Mean)

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

Its control panel has two LED lights that can show a fault code. Subject to the failure, your furnace may use steady or flashing lights.

Although there are certain elementary heating adjustments you can finish without an expert, the majority of repairs are best handled by experts. When your heating system won’t turn on or provide heated air, get in touch with Tri County Air Care LLC at 469-213-8367 for experienced furnace repair in Dallas.

Our specialists will rapidly identify and fix the issue, even if you don’t have a Lennox heating system. We can repair all kinds or makes—and get the heat reintroduced to your residence fast.


What Does the Flashing Light on My Heating System Mean?

Your furnace depends on lights to flash code when it needs to be repaired. It also uses this system to relay it’s heating correctly.

Normal heating includes:

  • Concurrent slow flash—furnace heating correctly.
  • Simultaneous fast flash—heating system is starting to call for heat.

If you realize that a solitary light going on and off slowly and the other flashing quickly, your heating system might be having a low flame signal. This can occur even when your furnace is heating like it should. It indicates the flame sensing rod may have build-up or in the incorrect area on the burner. Contact us at 469-213-8367 for help.

Here are some of the most common errors for Lennox heating systems.

Furnace Refuses to Kick On

Here are some of the light patterns you might see when your furnace refuses to or keep running. The bulk of these problems have to be repaired by a professional, for instance from Tri County Air Care LLC.

  1. Both LED lights aren’t lit. This signifies your furnace might not have electricity. Check the breaker box to ensure the furnace fuse is not flipped. Attempt to reset the fuse if it is in the “off” spot. If it immediately flips after you reset it, leave the breaker alone and call us at 469-213-8367.
  2. A single light is solid and the other is flashing slowly. This signifies the flame rollout switch is probably not working right. The switch is an essential safety mechanism that helps in avoiding fires and carbon monoxide. You shouldn’t attempt to take care of this issue yourself.
  3. A single light is flickering rapidly and the other is blinking slowly. This typically means power polarity has been inverted. Your heating system could have a wiring problem that calls for specialized support from Tri County Air Care LLC.
  4. Both lights are flashing slowly. This signifies your furnace’s blower motor possibly isn’t operating. This piece sends hot air from the heater into your rooms. We can help in pinpointing what’s causing a problem with this piece.
  5. A single light is flickering slowly and the other is blinking rapidly. This signifies your heating system could have not enough voltage or a short circuit. Reach out to our experts at 469-213-8367 for support.
  6. One light is blinking on, on and off while the other blinks on, off, on. This indicates there may be an error with your heater’s control panel or wiring. Tri County Air Care LLC can determine the problem and fix it.
  7. The pair of lights are using every other slow flickers. This signifies your HVAC system possibly has a flame issue. There may be a problem with its gas supply, gas valve or ignitor control. Contact us at 469-213-8367 for assistance.
  8. A single light flickers slowly while the other remains steady. This often means your HVAC equipment’s limit switch is not working. The switch keeps your heating system from getting too hot. Call the specialists at Tri County Air Care LLC for help.

Heater Blower Operates But No Heat

Here’s what may be broken when you observe your furnace’s blower fan working, but you aren’t getting any heated air.

  • Both lights are giving alternating rapid blinks. This means your furnace ignitor could not be working. This component ignites fuel in your heater to produce warm air and should be repaired by an expert from Tri County Air Care LLC.

Depend on Us for Skilled Furnace Repair

When you need to get your heater repaired without delay, trust the technicians at Tri County Air Care LLC. Our techs will take care of the issue promptly and have your home feeling relaxing again soon. Reach out to us at 469-213-8367 or contact us online to get an appointment right away.

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