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

Its control panel has double LED lights that can display a fault code. Depending on the fault, your heating system might show continuous or flashing lights.

While there are various simple furnace adjustments you can complete on your own, most fixes are best taken care of by the professionals. When your furnace won’t kick on or provide warmth, contact Assured Appliance & Heating & Air at 847-306-8990 for experienced furnace repair in Genoa.

Our experts will speedily detect and fix the problem, even if you don’t have a Lennox heater. We can fix whichever kinds or makes—and get the comfort reintroduced to your house fast.

What Does the Flashing Light on My Heater Mean?

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

Normal heating includes:

  • Simultaneous slow flash—furnace working like it should.
  • Both lights flash fast—heater is starting to call for heat.

If you see a solitary light flashing slowly and the other going on and off fast, your heating system might have a low flame signal. This can take place even when your heater is running correctly. It signifies the flame sensing rod might be dirty or in the bad spot on the burner. Contact us at 847-306-8990 for assistance.

Here are a few other of the most typical faults for Lennox furnaces.

Heater Refuses to Start

Here are some of the light patterns you might observe when your furnace will not or keep running. The bulk of these problems must be taken care of by a professional, such as one from Assured Appliance & Heating & Air.

  1. Both LED lights are extinguished. This means your heating system might not have electricity. Find the breaker box to ensure the heater fuse isn’t tripped. Try resetting the fuse if it’s in the “off” spot. If it promptly flips following a reset, don’t touch the breaker and get in touch with us us at 847-306-8990.
  2. One light is continuous and the other is blinking slowly. This shows the flame rollout switch is may be malfunctioning. The component is a critical safety guard that helps in preventing fires and carbon monoxide. You shouldn’t seek to repair this issue on your own.
  3. One light is blinking fast and the other is flashing slowly. This likely indicates power polarity has been transposed. Your heater may have a wiring fault that calls for professional aid from Assured Appliance & Heating & Air.
  4. All lights are flashing slowly. This means your heating system’s blower motor probably isn’t running. This part distributes warm air from the furnace into your rooms. We can assist in pinpointing what’s causing a problem with this piece.
  5. A single light is blinking slowly and the other is blinking quickly. This indicates your heating system might have low voltage or a short circuit. Get in touch with our experts at 847-306-8990 for help.
  6. One light is flashing on, on, off while the other flickers on, off, on. This signifies there could be trouble with your heater’s motherboard or wiring. Assured Appliance & Heating & Air can determine the problem and take care of it.
  7. Both lights are using alternate slow flashes. This signifies your HVAC system possibly has a flame issue. There might be trouble with its gas supply, gas valve or ignitor control. Reach out to us at 847-306-8990 for assistance.
  8. A single light blinks slowly while the other is continuous. This usually indicates your heating system’s limit switch is experiencing an error. The switch prevents your heating system from becoming too warm. Call the professionals at Assured Appliance & Heating & Air for help.

Furnace Blower Works But No Heat

Here’s what might be wrong when you observe your heater’s blower fan on, but you aren’t receiving any heated air.

  • The duo of lights display alternate fast blinks. This signifies your furnace ignitor could not be working. This piece kindles gas in your heater to create warm air and should be fixed by a technician from Assured Appliance & Heating & Air.

Trust Us for Professional Furnace Repair

When you need to have your heating system in working order fast, trust the experts at Assured Appliance & Heating & Air. Our techs will repair the fault quickly and have your space feeling relaxing again soon. Reach out to us at 847-306-8990 or contact us online to request an appointment today.