While your Lennox® furnace isn’t able to talk to you, it possesses a process to communicate a furnace error.

Its control panel has double LED lights that can display a fault code. Subject to the malfunction, your heater might display solid or flashing lights.

Although there are a few simple HVAC adjustments you can finish without an expert, most tasks are best left to HVAC technicians. When your furnace refuses to kick on or provide heated air, call Desert Husky HVAC/R Services at 520-416-5415 for experienced furnace repair in Tucson and Phoenix.

Our specialists will speedily identify and take care of the breakdown, even if you don’t have a Lennox heater. We can fix any brands or configuration—and get the comfort returned to your home quickly.

What Does the Flashing Light on My Furnace Mean?

Your heating system depends on lights to flash code when it requires repairs. It also engages this setup to tell you it’s heating properly.

Normal function includes:

  • Simultaneous slow flash—heater running properly.
  • Simultaneous fast flash—heater is initiating the call for heat.

If you notice a single light blinking slowly and the other blinking rapidly, your heating system could be experiencing a low flame signal. This can happen even when your furnace is operating correctly. It means the flame sensing rod could have buildup or in the bad spot on the burner. Call us at 520-416-5415 for support.

Here are a few other of the most common problems for Lennox heating systems.

Heating System Will Not Start

Here are some of the light arrangements you might observe when your furnace won’t turn on or keep operating. The majority of these errors have to be taken care of by a specialist, like one from Desert Husky HVAC/R Services.

  1. All LED lights aren’t lit. This signifies your heating system might not have electricity. Go to the breaker box to confirm the heating system fuse hasn’t triggered. Try resetting the fuse if it is in the “off” spot. If it immediately trips after you reset it, don’t touch the breaker and call us at 520-416-5415.
  2. A single light is continuous and the other is flashing slowly. This implies the flame rollout switch is possibly not working right. The component is an essential safety guard that helps in preventing fires and carbon monoxide. You shouldn’t seek to take care of this fault on your own.
  3. An individual light is flashing rapidly and the other is flashing slowly. This often indicates power polarity has been inverted. Your furnace might have a wiring problem that requires expert help from Desert Husky HVAC/R Services.
  4. The pair of lights are flickering slowly. This means your heater’s blower motor probably isn’t working. This piece moves hot air from the heater into your rooms. We can aid in figuring out what’s causing a problem with this part.
  5. An individual light is flashing slowly and the other is blinking rapidly. This means your heater could have low voltage or a short circuit. Call our technicians at 520-416-5415 for support.
  6. One light is flashing on, on, off while the other blinks on, off, on. This signifies there might be a malfunction with your heater’s motherboard or wiring. Desert Husky HVAC/R Services can find the error and repair it.
  7. The pair of lights are using alternating slow blinks. This signifies your HVAC system may have a flame error. There might be an issue with its gas supply, gas valve or ignitor control. Get in touch with us at 520-416-5415 for help.
  8. A single light blinks slowly while the other remains solid. This usually signifies your HVAC equipment’s limit switch is malfunctioning. The switch keeps your HVAC equipment from overheating. Get in touch with the pros at Desert Husky HVAC/R Services for support.

Heater Blower Operates But No Warmth

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

  • The pair of lights are showing every other fast blinks. This means your furnace ignitor might not be in working order. This component lights fuel in your HVAC equipment to make warmth and should be serviced by a technician from Desert Husky HVAC/R Services.

Turn to Us for Expert Furnace Repair

When you have to get your HVAC equipment repaired without delay, trust the experts at Desert Husky HVAC/R Services. Our techs will repair the issue without delay and have your residence feeling cozy again in a short time. Reach out to us at 520-416-5415 or contact us online to request an appointment right away.