While your Lennox® heater can’t chat with you, it possesses a process to tell you about a furnace error.

Its control panel has a set of LED lights that can share a fault code. Based on the failure, your furnace might show continuous or flashing lights.

While there are a few basic heating repairs you can complete without an expert, most tasks are best left to experts. When your furnace won’t turn on or deliver heated air, call Knoechel Heating at 724-425-5852 for professional furnace repair in Zelienople.

Our specialists will rapidly discover and handle the malfunction, even if you don’t own a Lennox heating system. We can fix any types or models—and get the warmth returned to your residence fast.

What Does the Blinking Light on My Furnace Mean?

Your heating system depends on lights to flash code when it is malfunctioning. It also uses this system to let you know it’s operating like it should.

Normal operation includes:

  • Concurrent slow flash—furnace operating properly.
  • Concurrent fast flash—heater is initiating the call for heat.

If you see a single light flashing slowly and the other flashing fast, your heating system could have a low flame signal. This can happen even when your heater is heating correctly. It means the flame sensing rod may be dirty or in the wrong area on the burner. Contact us at 724-425-5852 for help.

Here are some of the most typical problems for Lennox furnaces.

Heating System Refuses to Turn On

Here are many of the light sequences you might observe when your heater refuses to or keep heating. The bulk of these issues must be fixed by a specialist, like one from Knoechel Heating.

  1. The pair of LED lights aren’t lit. This means your heating system might not have electricity. Go to the breaker box to ensure the heating system fuse isn’t triggered. You should reset the fuse if it is in the “off” spot. If it immediately trips after you reset it, don’t try to reset it again and get in touch with us us at 724-425-5852.
  2. A single light is continuous and the other is flickering slowly. This signifies the flame rollout switch is may be open. The component is a critical safety mechanism that aids in avoiding fires and carbon monoxide. You shouldn’t try to take care of this malfunction without professional help.
  3. One light is blinking rapidly and the other is blinking slowly. This likely indicates power polarity has been reversed. Your heater might have a wiring problem that requires professional aid from Knoechel Heating.
  4. The pair of lights are flickering slowly. This signifies your heating system’s blower motor likely isn’t running. This piece distributes warm air from the furnace into your space. We can help in pinpointing what’s causing an issue with this piece.
  5. One light is blinking slowly and the other is flickering quickly. This signifies your heater might have not enough voltage or a short circuit. Get in touch with our specialists at 724-425-5852 for support.
  6. One light is flashing on, on, off while the other flashes on, off, on. This means there could be a malfunction with your heating system’s motherboard or wiring. Knoechel Heating can find the error and handle it.
  7. Both lights show every other slow flickers. This signifies your HVAC system possibly has a flame error. There may be a problem with its gas supply, gas valve or ignitor control. Contact us at 724-425-5852 for help.
  8. A single light flashes slowly while the other remains steady. This typically signifies your heating system’s limit switch is experiencing an error. The switch prevents your HVAC equipment from getting too hot. Get in touch with the pros at Knoechel Heating for help.

Heating System Blower Runs But No Warm Air

Here’s what could be broken when you hear your heater’s blower fan running, but you aren’t getting any warm air.

  • The pair of lights display every other rapid blinks. This signifies your furnace ignitor might not be working. This component ignites fuel in your furnace to create warmth and should be serviced by a technician from Knoechel Heating.

Turn to Us for Skilled Furnace Repair

When you have to have your heating system fixed fast, trust the professionals at Knoechel Heating. Our techs will handle the error quickly and have your house feeling relaxing again in no time. Reach out to us at 724-425-5852 or contact us online to schedule an appointment now.