While your Lennox® heater cannot speak to you, it has a way to communicate a furnace error.

Its control panel has a set of LED lights that can share a fault code. Subject to the issue, your heating system could show steady or flashing lights.

Though there are certain basic HVAC adjustments you can take care of on your own, many fixes are best taken care of by experts. When your heater will not kick on or deliver warm air, reach out to Stanford Heating & Cooling at 812-825-8695 for experienced furnace repair in Bloomfield.

Our technicians will swiftly determine and repair the breakdown, even if you don’t have a Lennox heating system. We can fix whichever brands or models—and get the warmth reintroduced to your house fast.

What Does the Flickering Light on My Furnace Mean?

Your furnace depends on lights to flash code when it isn’t working right. It also uses this system to relay it’s operating like it should.

Regular function consists of:

  • Simultaneous slow flash—furnace operating correctly.
  • Concurrent fast flash—furnace is initiating the call for heat.

If you notice a single light going on and off slowly and the other flashing rapidly, your furnace may be having a low flame signal. This can occur even when your heater is working like it should. It means the flame sensing rod could have buildup or in the bad location on the burner. Contact us at 812-825-8695 for help.

Here are several other of the most common faults for Lennox HVAC systems.

Heater Won’t Turn On

Here are many of the light arrangements you might notice when your heating system will not or keep running. The majority of these issues have to be handled by an expert, such as one from Stanford Heating & Cooling.

  1. Both LED lights are extinguished. This signifies your HVAC system might not have power. Go to the breaker box to confirm the heater fuse isn’t triggered. Attempt to reset the fuse if it’s in the “off” position. If it instantly trips following a reset, don’t try to reset it again and call us at 812-825-8695.
  2. A single light is continuous and the other is flickering slowly. This implies the flame rollout switch is may be malfunctioning. The switch is a critical safety mechanism that helps in stopping fires and carbon monoxide. You shouldn’t seek to handle this malfunction yourself.
  3. One light is blinking rapidly and the other is flickering slowly. This often indicates power polarity has been transposed. Your heating system might have a wiring fault that requires specialized help from Stanford Heating & Cooling.
  4. The pair of lights are flickering slowly. This means your heater’s blower motor probably isn’t running. This component sends warm air from the heating system into your home. We can help in figuring out what’s causing an issue with this piece.
  5. An individual light is blinking slowly and the other is blinking quickly. This means your heater could have insufficient voltage or a short circuit. Get in touch with our specialists at 812-825-8695 for support.
  6. One light is flickering on, on, off while the other flashes on, off, on. This signifies there may be trouble with your HVAC system’s motherboard or wiring. Stanford Heating & Cooling can locate the issue and take care of it.
  7. The pair of lights are using alternate slow flickers. This means your HVAC system may have a flame problem. There may be an issue with its gas supply, gas valve or ignitor control. Contact us at 812-825-8695 for assistance.
  8. A single light flashes slowly while the other remains steady. This often means your heater’s limit switch is malfunctioning. The switch stops your HVAC equipment from becoming too warm. Get in touch with the specialists at Stanford Heating & Cooling for support.

Heater Blower Works But No Warm Air

Here’s what could be at fault when you observe your heater’s blower fan running, but you aren’t gaining any warm air.

  • Both lights are showing every other rapid flickers. This means your furnace ignitor may not be in working order. This component lights gas in your furnace to create warmth and should be fixed by a technician from Stanford Heating & Cooling.

Trust Us for Professional Furnace Repair

When you have to get your heater fixed quickly, trust the experts at Stanford Heating & Cooling. Our techs will handle the fault quickly and have your rooms feeling cozy again in a short time. Reach out to us at 812-825-8695 or contact us online to request an appointment right away.