While your Lennox® heater cannot talk to you, it has a way to tell you about a furnace error.

Its control board has a set of LED lights that can share a fault code. Subject to the fault, your heating system might show continuous or flashing lights.

Although there are some simple furnace adjustments you can finish without an expert, many tasks are best handled by HVAC technicians. When your furnace refuses to turn on or deliver warmth, get in touch with Clean Air HVAC at 925-233-6238 for expert furnace repair in Pacheco.

Our technicians will speedily discover and repair the issue, even if you don’t have a Lennox heater. We can service all kinds or models—and get the comfort returned to your house quickly.

What Does the Flickering Light on My Heating System Mean?

Your furnace depends on lights to flash code when it requires repairs. It also works this setup to let you know it’s heating correctly.

Normal heating involves:

  • Concurrent slow flash—heater heating properly.
  • Simultaneous fast flash—heater is starting to call for heat.

If you see a lone light going on and off slowly and the other flashing fast, your heating system could have a low flame signal. This can happen even when your heater is working properly. It means the flame sensing rod may be dirty or in the wrong area on the burner. Contact us at 925-233-6238 for help.

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

Heating System Will Not Start

Here are a few of the light arrangements you may notice when your heat refuses to or keep heating. The bulk of these issues have to be fixed by a technician, for instance from Clean Air HVAC.

  1. Both LED lights aren’t lit. This indicates your HVAC system might not have electricity. Examine the breaker box to make sure the heating system fuse is not triggered. You should reset the fuse if it is in the “off” spot. If it immediately turns off following a reset, don’t try to reset it again and get in touch with us us at 925-233-6238.
  2. One light is continuous and the other is flickering slowly. This implies the flame rollout switch is likely open. The switch is a critical safety mechanism that helps in stopping fires and carbon monoxide. You shouldn’t seek to repair this fault yourself.
  3. An individual light is blinking quickly and the other is flashing slowly. This likely indicates power polarity has been inverted. Your heating system may have a wiring problem that calls for professional aid from Clean Air HVAC.
  4. The duo of lights are blinking slowly. This means your heating system’s blower motor possibly isn’t running. This piece moves hot air from the heater into your rooms. We can help in figuring out what’s causing an issue with this part.
  5. A single light is flickering slowly and the other is flashing rapidly. This indicates your heater may have insufficient voltage or a short circuit. Get in touch with our technicians at 925-233-6238 for support.
  6. One light is blinking on, on, off while the other flickers on, off, on. This indicates there may be a fault with your heater’s control board or wiring. Clean Air HVAC can locate the error and repair it.
  7. Both lights show every other slow flashes. This indicates your heating system possibly has a flame error. There may be a problem with its gas supply, gas valve or ignitor control. Call us at 925-233-6238 for support.
  8. An individual light flashes slowly while the other stays continuous. This often indicates your HVAC system’s limit switch is experiencing an error. The switch keeps your heater from getting too hot. Get in touch with the professionals at Clean Air HVAC for help.

Furnace Blower Runs But No Heat

Here’s what may be broken when you observe your heating equipment’s blower fan running, but you aren’t getting any warm air.

  • The pair of lights display every other rapid flashes. This means your furnace ignitor might be broken. This component ignites fuel in your furnace to create heat and should be serviced by an expert from Clean Air HVAC.

Turn to Us for Expert Furnace Repair

When you have to get your HVAC equipment in working order quickly, trust the professionals at Clean Air HVAC. Our pros will fix the error right away and have your space feeling comfortable again soon. Reach out to us at 925-233-6238 or contact us online to schedule an appointment today.