While your Lennox® heating system cannot speak to you, it possesses a process to communicate a furnace error.

Its control panel has double LED lights that can show a fault code. Depending on the failure, your furnace could use continuous or flashing lights.

Though there are various simple HVAC fixes you can take care of on your own, most repairs are best left to experts. When your furnace won’t turn on or give warmth, get in touch with Kapaun & Brown at 641-812-2028 for expert furnace repair in Marshalltown.

Our specialists will speedily determine and repair the malfunction, even if you don’t have a Lennox heating system. We can service whichever types or configuration—and get the warmth reintroduced to your home without delay.

What Does the Flickering Light on My Furnace Mean?

Your heater relies on lights to flash code when it is malfunctioning. It also engages these lights to let you know it’s working correctly.

Normal heating includes:

  • Concurrent slow flash—furnace heating like it should.
  • Simultaneous fast flash—furnace is starting to call for heat.

If you realize that a solitary light going on and off slowly and the other flashing fast, your furnace may be experiencing a low flame signal. This can occur even when your furnace is running correctly. It signifies the flame sensing rod may have buildup or in the bad area on the burner. Reach out to us at 641-812-2028 for support.

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

Furnace Won’t Start

Here are a few of the light sequences you might observe when your heater won’t turn on or keep heating. The bulk of these problems have to be handled by an expert, like one from Kapaun & Brown.

  1. Both LED lights aren’t lit. This indicates your heater might not have electricity. Look at the breaker box to make sure the heater fuse hasn’t flipped. Try resetting the fuse if it is in the “off” area. If it promptly flips following a reset, don’t touch the breaker and call us at 641-812-2028.
  2. A single light is continuous and the other is blinking slowly. This signifies the flame rollout switch is may be open. The switch is a critical safety guard that aids in preventing fires and carbon monoxide. You shouldn’t attempt to handle this malfunction yourself.
  3. One light is flickering fast and the other is flickering slowly. This likely indicates power polarity has been reversed. Your furnace could have a wiring fault that needs professional assistance from Kapaun & Brown.
  4. Both lights are blinking slowly. This signifies your heater’s blower motor probably isn’t running. This part sends hot air from the heating system into your rooms. We can help in figuring out what’s causing a problem with this part.
  5. An individual light is blinking slowly and the other is flickering rapidly. This indicates your heater could have insufficient voltage or a short circuit. Get in touch with our specialists at 641-812-2028 for assistance.
  6. One light is blinking on, on, off while the other flashes on, off, on. This means there might be trouble with your HVAC system’s control panel or wiring. Kapaun & Brown can pinpoint the fault and repair it.
  7. Both lights are using alternating slow flickers. This indicates your heater likely has a flame error. There might be trouble with its gas supply, gas valve or ignitor control. Call us at 641-812-2028 for support.
  8. A single light blinks slowly while the other is steady. This usually means your heating system’s limit switch is not working. The switch stops your HVAC system from overheating. Call the experts at Kapaun & Brown for assistance.

Heating System Blower Works But No Heat

Here’s what could be wrong when you hear your heating equipment’s blower fan on, but you aren’t gaining any heated air.

  • The pair of lights are giving every other rapid blinks. This indicates your furnace ignitor could not be working. This piece lights energy in your HVAC equipment to make warmth and should be serviced by a technician from Kapaun & Brown.

Turn to Us for Professional Furnace Repair

When you have to get your heater fixed without delay, trust the experts at Kapaun & Brown. Our pros will handle the error right away and have your rooms feeling relaxing again in a short time. Get in touch with us at 641-812-2028 or contact us online to schedule an appointment right away.