While your Lennox® furnace cannot chat with you, it possesses a process to communicate a furnace error.

Its motherboard has a set of LED lights that can display a fault code. Based on the malfunction, your heating system could show continuous or flashing lights.

Although there are some basic HVAC fixes you can do without an expert, many repairs are best handled by HVAC technicians. When your heater refuses to kick on or deliver warm air, get in touch with H&C Heating and Cooling at 301-960-3247 for experienced furnace repair in Laurel.

Our specialists will speedily discover and take care of the breakdown, even if you don’t use a Lennox heater. We can service whichever kinds or configuration—and get the warmth reintroduced to your residence fast.

What Does the Blinking Light on My Furnace Mean?

Your heating system depends on lights to flash code when it requires repairs. It also works this setup to let you know it’s operating like it should.

Regular operation includes:

  • Simultaneous slow flash—heater working properly.
  • Both lights flash fast—furnace is starting to call for heat.

If you see a solitary light flashing slowly and the other going on and off quickly, your heater may have a low flame signal. This can occur even when your heater is working like it should. It signifies the flame sensing rod could be dirty or in the bad location on the burner. Call us at 301-960-3247 for help.

Here are some of the most typical issues for Lennox heating systems.

Furnace Refuses to Turn On

Here are some of the light patterns you might see when your furnace refuses to or keep heating. Most of these problems need to be fixed by an expert, like one from H&C Heating and Cooling.

  1. All LED lights are off. This means your heating system might not have electricity. Find the breaker box to confirm the heating system fuse isn’t flipped. You should reset the fuse if it is in the “off” position. If it instantly trips after a subsequent reset, don’t touch the breaker and contact us at 301-960-3247.
  2. One light is unchanging and the other is blinking slowly. This shows the flame rollout switch is likely not working right. The component is a critical safety mechanism that aids in stopping fires and carbon monoxide. You shouldn’t try to handle this problem on your own.
  3. A single light is blinking fast and the other is flickering slowly. This often means power polarity has been transposed. Your heating system could have a wiring fault that calls for specialized aid from H&C Heating and Cooling.
  4. The pair of lights are blinking slowly. This means your heating system’s blower motor likely isn’t working. This piece circulates hot air from the heater into your rooms. We can assist in figuring out what’s causing an issue with this component.
  5. A single light is blinking slowly and the other is flickering rapidly. This means your heating system could have not enough voltage or a short circuit. Contact our technicians at 301-960-3247 for help.
  6. One light is flickering on, on, off while the other flickers on, off, on. This indicates there may be an issue with your heater’s control panel or wiring. H&C Heating and Cooling can pinpoint the error and handle it.
  7. The pair of lights are using alternate slow flashes. This means your HVAC equipment may have a flame error. There might be an issue with its gas supply, gas valve or ignitor control. Contact us at 301-960-3247 for assistance.
  8. An individual light flashes slowly while the other stays steady. This usually indicates your heating system’s limit switch is experiencing an error. The switch stops your HVAC system from overheating. Call the professionals at H&C Heating and Cooling for help.

Heating System Blower Runs But No Warmth

Here’s what may be broken when you hear your heating equipment’s blower fan working, but you aren’t gaining any warm air.

  • The pair of lights display alternate quick flashes. This indicates your furnace ignitor might not be in working order. This part ignites fuel in your HVAC equipment to produce warmth and should be repaired by an expert from H&C Heating and Cooling.

Turn to Us for Expert Furnace Repair

When you have to get your heater repaired quickly, depend on the technicians at H&C Heating and Cooling. Our techs will handle the fault quickly and have your space feeling relaxing again in no time. Reach out to us at 301-960-3247 or contact us online to get an appointment now.