While your Lennox® HVAC equipment cannot talk to you, it does have a procedure to get your attention when there’s a furnace error.

Its motherboard has twin LED lights that can share a fault code. Based on the problem, your heating system may display continuous or flashing lights.

While there are various simple heating fixes you can do yourself, the majority of repairs are best handled by experts. When your furnace will not kick on or deliver warm air, contact Bishop’s HVAC at 916-591-6889 for professional furnace repair in Sacramento.

Our specialists will swiftly discover and handle the breakdown, even if you don’t have a Lennox heater. We can fix all kinds or models—and get the heat reintroduced to your home quickly.

What Does the Blinking Light on My Heater Mean?

Your heating system depends on lights to flash code when it requires repairs. It also uses these lights to let you know it’s heating like it should.

Normal function involves:

  • Concurrent slow flash—heating system heating correctly.
  • Concurrent fast flash—heating system is beginning to call for heat.

If you see a single light flashing slowly and the other blinking fast, your furnace might be experiencing a low flame signal. This can happen even when your furnace is heating like it should. It indicates the flame sensing rod might have buildup or in the bad spot on the burner. Contact us at 916-591-6889 for support.

Here are several other of the most routine issues for Lennox furnaces.

Furnace Will Not Kick On

Here are some of the light sequences you might see when your heat won’t turn on or keep running. Most of these issues need to be repaired by an expert, for instance from Bishop’s HVAC.

  1. The duo of LED lights are off. This means your HVAC system might not be receiving power. Find the breaker box to confirm the furnace fuse has not triggered. Attempt to reset the fuse if it’s in the “off” area. If it immediately trips after a subsequent reset, don’t try to reset it again and contact us at 916-591-6889.
  2. An individual light is continuous and the other is flashing slowly. This shows the flame rollout switch is may be malfunctioning. The part is an essential safety device that assists in avoiding fires and carbon monoxide. You shouldn’t seek to fix this malfunction on your own.
  3. One light is flickering rapidly and the other is flashing slowly. This likely signifies power polarity has been reversed. Your heater could have a wiring fault that calls for expert aid from Bishop’s HVAC.
  4. Both lights are blinking slowly. This signifies your heater’s blower motor probably isn’t working. This part moves heated air from the HVAC system into your space. We can help in figuring out what’s wrong with this part.
  5. A single light is flickering slowly and the other is flickering fast. This indicates your HVAC system might have insufficient voltage or a short circuit. Contact our specialists at 916-591-6889 for help.
  6. One light is flashing on, on, off while the other blinks on, off, on. This means there could be a malfunction with your HVAC system’s control board or wiring. Bishop’s HVAC can pinpoint the issue and repair it.
  7. The pair of lights are using alternate slow blinks. This means your HVAC equipment possibly has a flame problem. There may be an issue with its gas supply, gas valve or ignitor control. Get in touch with us at 916-591-6889 for support.
  8. An individual light flickers slowly while the other remains solid. This often indicates your heating system’s limit switch is malfunctioning. The switch stops your HVAC equipment from getting too hot. Call the experts at Bishop’s HVAC for support.

Furnace Blower Operates But No Heat

Here’s what might be wrong when you notice your heating equipment’s blower fan running, but you aren’t getting any warm air.

  • The pair of lights are giving alternate fast flashes. This means your furnace ignitor might not be working. This component lights energy in your furnace to make heat and should be serviced by a specialist from Bishop’s HVAC.

Depend on Us for Skilled Furnace Repair

When you need to have your heating system in working order without delay, trust the professionals at Bishop’s HVAC. Our techs will take care of the error without delay and have your space feeling relaxing again in a short time. Contact us at 916-591-6889 or contact us online to request an appointment today.