While your Lennox® HVAC equipment can’t talk to you, it possesses a procedure to communicate a furnace error.

Its control board has double LED lights that can share a fault code. Subject to the issue, your heating system may use steady or flashing lights.

Though there are various elementary furnace adjustments you can take care of on your own, most tasks are best handled by the professionals. When your furnace will not kick on or deliver heat, contact Ilten's at 319-208-2351 for professional furnace repair in Cedar Rapids.

Our specialists will swiftly detect and fix the breakdown, even if you don’t have a Lennox heating system. We can service whichever kinds or models—and get the comfort reintroduced to your house fast.

What Does the Flickering Light on My Furnace Mean?

Your heater uses lights to flash code when it isn’t working right. It also works these lights to tell you it’s heating properly.

Normal heating includes:

  • Concurrent slow flash—heater running like it should.
  • Concurrent fast flash—heating system is starting to call for heat.

If you realize that a lone light going on and off slowly and the other going on and off fast, your heater may have a low flame signal. This can occur even when your furnace is running correctly. It means the flame sensing rod could be dirty or in the incorrect location on the burner. Reach out to us at 319-208-2351 for support.

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

Furnace Won’t Kick On

Here are many of the light patterns you could observe when your heat will not or keep heating. The bulk of these errors need to be handled by a specialist, for instance from Ilten's.

  1. The pair of LED lights aren’t lit. This indicates your HVAC system might not have electricity. Examine the breaker box to confirm the heating system fuse isn’t flipped. Try resetting the fuse if it’s in the “off” area. If it rapidly turns off following a reset, don’t touch the breaker and call us at 319-208-2351.
  2. One light is stable and the other is flickering slowly. This shows the flame rollout switch is may be not working right. The component is a critical safety tool that aids in avoiding fires and carbon monoxide. You shouldn’t seek to repair this problem yourself.
  3. A single light is flashing rapidly and the other is blinking slowly. This typically signifies power polarity has been inverted. Your heating system could have a wiring fault that needs professional support from Ilten's.
  4. The duo of lights are blinking slowly. This signifies your heating system’s blower motor probably isn’t running. This component moves warm air from the heating system into your rooms. We can help in determining what’s causing a problem with this piece.
  5. An individual light is flickering slowly and the other is blinking fast. This signifies your heater may have low voltage or a short circuit. Reach out to our specialists at 319-208-2351 for help.
  6. One light is flashing on, on, off while the other flashes on, off, on. This indicates there may be an issue with your HVAC system’s motherboard or wiring. Ilten's can locate the problem and fix it.
  7. The pair of lights display every other slow blinks. This indicates your heating system likely has a flame failure. There could be a problem with its gas supply, gas valve or ignitor control. Get in touch with us at 319-208-2351 for help.
  8. A single light flickers slowly while the other is continuous. This typically means your HVAC system’s limit switch is experiencing an error. The switch keeps your HVAC system from overheating. Call the pros at Ilten's for assistance.

Heater Blower Operates But No Warmth

Here’s what might be wrong when you hear your heating system’s blower fan working, but you aren’t gaining any heated air.

  • Both lights are showing every other rapid blinks. This means your furnace ignitor could not be in working order. This piece lights fuel in your HVAC equipment to create warm air and should be repaired by an expert from Ilten's.

Depend on Us for Expert Furnace Repair

When you need to get your HVAC equipment fixed fast, turn to the technicians at Ilten's. Our technicians will repair the issue right away and have your house feeling relaxing again soon. Get in touch with us at 319-208-2351 or contact us online to get an appointment now.