While your Lennox® HVAC equipment can’t chat with you, it does have a procedure to get your attention when there’s a furnace error.

Its control board has a set of LED lights that can show a fault code. Based on the malfunction, your furnace may show solid or flashing lights.

While there are a few basic furnace fixes you can take care of on your own, many fixes are best handled by experts. When your heater won’t kick on or provide heat, get in touch with Cytech Heating & Cooling L.C. at 956-553-3265 for professional furnace repair in McAllen.

Our experts will rapidly identify and fix the breakdown, even if you don’t have a Lennox heater. We can service all brands or makes—and get the warmth returned to your residence fast.

What Does the Flashing Light on My Furnace Mean?

Your heater uses lights to flash code when it requires repairs. It also uses this setup to relay it’s operating properly.

Regular heating involves:

  • Simultaneous slow flash—furnace running correctly.
  • Simultaneous fast flash—furnace is beginning to call for heat.

If you notice a solitary light going on and off slowly and the other flashing rapidly, your heating system might be having a low flame signal. This can take place even when your furnace is operating properly. It means the flame sensing rod may have buildup or in the bad area on the burner. Reach out to us at 956-553-3265 for support.

Here are a few other of the most routine errors for Lennox heaters.

Heater Will Not Turn On

Here are some of the light patterns you could see when your heat refuses to or keep operating. The bulk of these problems must be taken care of by a professional, such as one from Cytech Heating & Cooling L.C..

  1. Both LED lights are extinguished. This signifies your HVAC system might not have power. Examine the breaker box to make sure the furnace fuse is not flipped. You should reset the fuse if it is in the “off” position. If it promptly turns off after a subsequent reset, don’t touch the breaker and get in touch with us us at 956-553-3265.
  2. An individual light is unchanging and the other is flashing slowly. This signifies the flame rollout switch is may be open. The part is a critical safety guard that helps in preventing fires and carbon monoxide. You shouldn’t try to repair this problem without professional help.
  3. An individual light is blinking quickly and the other is flashing slowly. This often means power polarity has been reversed. Your heater could have a wiring problem that requires expert aid from Cytech Heating & Cooling L.C..
  4. All lights are blinking slowly. This signifies your heater’s blower motor probably isn’t working. This part sends hot air from the heater into your rooms. We can aid in pinpointing what’s causing an issue with this component.
  5. One light is flashing slowly and the other is flashing fast. This means your heater may have insufficient voltage or a short circuit. Reach out to our specialists at 956-553-3265 for help.
  6. One light is blinking on, on, off while the other flickers on, off, on. This indicates there could be a malfunction with your heating system’s motherboard or wiring. Cytech Heating & Cooling L.C. can locate the problem and take care of it.
  7. Both lights are using every other slow blinks. This signifies your HVAC equipment likely has a flame issue. There could be trouble with its gas supply, gas valve or ignitor control. Get in touch with us at 956-553-3265 for help.
  8. A single light blinks slowly while the other is solid. This typically means your HVAC system’s limit switch is malfunctioning. The switch stops your heater from getting too hot. Reach out to the pros at Cytech Heating & Cooling L.C. for help.

Furnace Blower Works But No Warm Air

Here’s what might be at fault when you hear your heating equipment’s blower fan working, but you aren’t getting any heated air.

  • The pair of lights are showing every other fast blinks. This means your furnace ignitor may not be working. This piece lights energy in your heating system to make warmth and should be serviced by a technician from Cytech Heating & Cooling L.C..

Trust Us for Professional Furnace Repair

When you need to have your heating system repaired quickly, depend on the technicians at Cytech Heating & Cooling L.C.. Our pros will fix the issue right away and have your house feeling comfortable again in no time. Contact us at 956-553-3265 or contact us online to request an appointment today.