While your Lennox® HVAC equipment isn’t able to chat with you, it possesses a process to communicate a furnace error.

Its motherboard has double LED lights that can display a fault code. Depending on the issue, your heating system might show solid or flashing lights.

Though there are some simple HVAC repairs you can take care of without an expert, many fixes are best handled by experts. When your heating system won’t kick on or deliver warm air, contact Forster Heating at 530-885-8081 for skilled furnace repair in Auburn.

Our specialists will swiftly determine and handle the breakdown, even if you don’t own a Lennox heater. We can fix whichever brands or makes—and get the warmth reintroduced to your home fast.

What Does the Blinking Light on My Furnace Mean?

Your furnace depends on lights to flash code when it requires repairs. It also uses this system to tell you it’s heating like it should.

Regular heating consists of:

  • Simultaneous slow flash—furnace heating like it should.
  • Simultaneous fast flash—heater is initiating the call for heat.

If you realize that a lone light flashing slowly and the other flashing fast, your furnace might be experiencing a low flame signal. This can take place even when your heater is operating properly. It means the flame sensing rod could need to be cleaned or in the incorrect spot on the burner. Reach out to us at 530-885-8081 for assistance.

Here are a few other of the most typical faults for Lennox heaters.

Heater Refuses to Turn On

Here are a few of the light sequences you may observe when your furnace won’t turn on or keep heating. The bulk of these errors must be taken care of by an expert, for instance from Forster Heating.

  1. All LED lights are off. This means your HVAC system might not have power. Examine the breaker box to make sure the heater fuse isn’t tripped. You should reset the fuse if it’s in the “off” spot. If it promptly trips after you reset it, don’t try to reset it again and contact us at 530-885-8081.
  2. An individual light is continuous and the other is flashing slowly. This implies the flame rollout switch is likely not working right. The component is an essential safety guard that helps in avoiding fires and carbon monoxide. You shouldn’t try to repair this issue without professional help.
  3. An individual light is flickering rapidly and the other is flashing slowly. This typically indicates power polarity has been transposed. Your heater could have a wiring problem that requires expert help from Forster Heating.
  4. The duo of lights are flashing slowly. This indicates your furnace’s blower motor probably isn’t working. This component circulates warm air from the heater into your house. We can help in pinpointing what’s wrong with this component.
  5. One light is flickering slowly and the other is flickering fast. This means your heating system could have insufficient voltage or a short circuit. Call our experts at 530-885-8081 for support.
  6. One light is blinking on, on, off while the other flashes on, off, on. This signifies there might be an issue with your HVAC system’s control panel or wiring. Forster Heating can locate the fault and repair it.
  7. The pair of lights are using alternating slow flickers. This means your HVAC system possibly has a flame problem. There could be trouble with its gas supply, gas valve or ignitor control. Reach out to us at 530-885-8081 for assistance.
  8. An individual light flashes slowly while the other is solid. This often means your HVAC system’s limit switch is experiencing an error. The switch prevents your HVAC equipment from becoming too warm. Call the professionals at Forster Heating for help.

Heating System Blower Works But No Warm Air

Here’s what might be broken when you observe your heating equipment’s blower fan on, but you aren’t getting any heated air.

  • Both lights are showing alternate quick flashes. This signifies your furnace ignitor may not be working. This part kindles energy in your heater to make warmth and should be repaired by a technician from Forster Heating.

Trust Us for Expert Furnace Repair

When you need to have your HVAC equipment repaired without delay, trust the professionals at Forster Heating. Our technicians will take care of the fault quickly and have your space feeling comfortable again in no time. Reach out to us at 530-885-8081 or contact us online to request an appointment today.