While your Lennox® heating system isn’t able to speak to you, it does have a way to communicate a furnace error.

Its control board has double LED lights that can show a fault code. Subject to the malfunction, your heater could display solid or flashing lights.

Although there are certain simple heating adjustments you can take care of on your own, most repairs are best left to HVAC technicians. When your furnace won’t turn on or put out heat, contact James Heating & A/C, Inc at 336-853-6070 for expert furnace repair in Lexington.

Our specialists will swiftly detect and fix the problem, even if you don’t use a Lennox heater. We can fix all brands or makes—and get the heat returned to your house quickly.

What Does the Flashing Light on My Heater Mean?

Your heater relies on lights to flash code when it requires repairs. It also works these lights to relay it’s heating properly.

Correct function consists of:

  • Simultaneous slow flash—furnace heating properly.
  • Simultaneous fast flash—furnace is beginning to call for heat.

If you notice a single light flashing slowly and the other blinking quickly, your heating system could be experiencing a low flame signal. This can take place even when your heating system is operating like it should. It indicates the flame sensing rod may be dirty or in the incorrect area on the burner. Reach out to us at 336-853-6070 for assistance.

Here are several other of the most typical issues for Lennox furnaces.

Heater Won’t Start

Here are many of the light sequences you might notice when your heating system refuses to or keep operating. The majority of these errors need to be taken care of by a professional, like one from James Heating & A/C, Inc.

  1. The duo of LED lights are extinguished. This means your HVAC system might not have electricity. Find the breaker box to make sure the heater fuse isn’t flipped. You should reset the fuse if it is in the “off” position. If it promptly flips after you reset it, don’t touch the breaker and get in touch with us us at 336-853-6070.
  2. One light is unchanging and the other is flashing slowly. This implies the flame rollout switch is possibly malfunctioning. The part is an essential safety tool that assists in avoiding fires and carbon monoxide. You shouldn’t attempt to handle this fault without professional help.
  3. A single light is blinking fast and the other is flashing slowly. This often signifies power polarity has been transposed. Your heating system may have a wiring issue that needs expert support from James Heating & A/C, Inc.
  4. The duo of lights are flickering slowly. This means your furnace’s blower motor possibly isn’t operating. This part sends warm air from the heater into your house. We can aid in pinpointing what’s wrong with this part.
  5. An individual light is flashing slowly and the other is flashing fast. This indicates your heating system may have low voltage or a short circuit. Reach out to our technicians at 336-853-6070 for support.
  6. One light is blinking on, on, off while the other blinks on, off, on. This signifies there may be a malfunction with your heater’s control board or wiring. James Heating & A/C, Inc can determine the fault and handle it.
  7. The pair of lights are using alternate slow flickers. This means your HVAC system likely has a flame error. There may be an issue with its gas supply, gas valve or ignitor control. Get in touch with us at 336-853-6070 for assistance.
  8. A single light flickers slowly while the other stays steady. This usually signifies your HVAC equipment’s limit switch is malfunctioning. The switch keeps your heating system from overheating. Get in touch with the specialists at James Heating & A/C, Inc for assistance.

Heater Blower Runs But No Warm Air

Here’s what could be at fault when you observe your heating system’s blower fan on, but you aren’t gaining any warmth.

  • Both lights are giving alternate rapid flickers. This means your furnace ignitor may not be working. This piece kindles gas in your furnace to create warm air and should be fixed by an expert from James Heating & A/C, Inc.

Depend on Us for Expert Furnace Repair

When you have to have your heater repaired quickly, trust the technicians at James Heating & A/C, Inc. Our pros will repair the error without delay and have your rooms feeling comfortable again soon. Reach out to us at 336-853-6070 or contact us online to schedule an appointment right away.