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While your Lennox® heater can’t speak to you, it possesses a procedure to communicate a furnace error.

Its motherboard has a set of LED lights that can display a fault code. Depending on the fault, your furnace may use steady or flashing lights.

While there are various elementary furnace repairs you can finish without an expert, the majority of tasks are best handled by experts. When your heater refuses to start or put out heated air, contact Diamond Blue Air at phone for skilled furnace repair in Irving, TX.

Our experts will swiftly discover and handle the problem, even if you don’t own a Lennox heater. We can service whichever kinds or makes—and get the warmth reintroduced to your residence without delay.

What Does the Flashing Light on My Heating System Mean?

Your heating system depends on lights to flash code when it requires repairs. It also uses these lights to relay it’s running properly.

Correct heating includes:

  • Both lights flash slowly—furnace working properly.
  • Simultaneous fast flash—heater is starting to call for heat.

If you notice one light blinking slowly and the other going on and off rapidly, your heating system may have a low flame signal. This can happen even when your heating system is working like it should. It signifies the flame sensing rod might have build-up or in the bad location on the burner. Contact us at phone for assistance.

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

Heating System Won’t Start

Here are many of the light patterns you could observe when your heating system refuses to or keep heating. Most of these issues must be taken care of by a technician, for instance from Diamond Blue Air.

  1. The duo of LED lights aren’t lit. This signifies your furnace might not have power. Examine the breaker box to confirm the heating system fuse has not tripped. Try resetting the fuse if it has moved into the “off” spot. If it promptly trips after you reset it, don’t touch the breaker and call us at phone.
  2. An individual light is continuous and the other is flashing slowly. This implies the flame rollout switch is likely open. The part is a critical safety guard that aids in avoiding fires and carbon monoxide. You shouldn’t try to handle this malfunction without professional help.
  3. One light is blinking quickly and the other is flickering slowly. This often signifies power polarity has been transposed. Your furnace could have a wiring issue that requires specialized support from Diamond Blue Air.
  4. All lights are flashing slowly. This means your heating system’s blower motor probably isn’t working. This component distributes heated air from the heating system into your space. We can assist in figuring out what’s causing a problem with this part.
  5. A single light is blinking slowly and the other is flickering quickly. This means your furnace could have insufficient voltage or a short circuit. Call our specialists at phone for assistance.
  6. One light is flashing on, on and off while the other flickers on, off, on. This signifies there might be a fault with your furnace’s motherboard or wiring. Diamond Blue Air can locate the issue and take care of it.
  7. The pair of lights show alternate slow flashes. This indicates your heater possibly has a flame issue. There could be a problem with its gas supply, gas valve or ignitor control. Call us at phone for assistance.
  8. An individual light blinks slowly while the other stays steady. This often means your heater’s limit switch is open. The switch keeps your furnace from overheating. Get in touch with the pros at Diamond Blue Air for support.

Furnace Blower Works But No Warmth

Here’s what could be at fault when you hear your furnace’s blower fan running, but you aren’t getting any heat.

  • The duo of lights display every other fast flashes. This means your furnace ignitor may not be working. This component ignites energy in your heater to make warm air and should be serviced by a technician from Diamond Blue Air.

Trust Us for Expert Furnace Repair

When you have to have your furnace repaired fast, depend on the specialists at Diamond Blue Air. Our techs will handle the fault promptly and have your residence feeling comfortable again in a short time. Contact us at 469-200-3100 or contact us online to schedule an appointment right away.