While your Lennox® heating system can’t talk to you, it possesses a process to tell you about a furnace error.

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

Though there are various elementary HVAC adjustments you can do yourself, many services are best taken care of by experts. When your heater won’t start or put out warmth, call H&C Heating and Cooling at 301-960-3247 for expert furnace repair in Laurel.

Our specialists will swiftly discover and take care of the malfunction, even if you don’t own a Lennox heater. We can service any brands or models—and get the heat reintroduced to your residence without delay.

What Does the Blinking Light on My Furnace Mean?

Your heater uses lights to flash code when it isn’t working right. It also engages this system to relay it’s working like it should.

Regular operation consists of:

  • Simultaneous slow flash—heating system heating like it should.
  • Concurrent fast flash—heater is beginning to call for heat.

If you realize that a lone light going on and off slowly and the other flashing fast, your furnace may have a low flame signal. This can occur even when your heater is working properly. It indicates the flame sensing rod could have buildup or in the incorrect area on the burner. Call us at 301-960-3247 for help.

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

Furnace Won’t Turn On

Here are some of the light patterns you may observe when your heat refuses to or keep heating. The majority of these errors have to be repaired by a technician, for instance from H&C Heating and Cooling.

  1. The duo of LED lights are extinguished. This signifies your heating system might not have power. Examine the breaker box to ensure the heating system fuse isn’t tripped. Try resetting the fuse if it’s in the “off” spot. If it immediately turns off following a reset, don’t touch the breaker and contact us at 301-960-3247.
  2. One light is stable and the other is flashing slowly. This shows the flame rollout switch is may be open. The part is a critical safety mechanism that helps in preventing fires and carbon monoxide. You shouldn’t try to repair this malfunction on your own.
  3. One light is blinking rapidly and the other is flashing slowly. This often means power polarity has been transposed. Your heater could have a wiring fault that requires professional aid from H&C Heating and Cooling.
  4. The pair of lights are flickering slowly. This indicates your furnace’s blower motor probably isn’t working. This part moves heated air from the heater into your rooms. We can assist in determining what’s causing an issue with this piece.
  5. An individual light is blinking slowly and the other is flickering rapidly. This means your heating system could have low voltage or a short circuit. Contact our specialists at 301-960-3247 for assistance.
  6. One light is flashing on, on, off while the other flashes on, off, on. This signifies there could be an issue with your HVAC system’s motherboard or wiring. H&C Heating and Cooling can find the issue and handle it.
  7. The duo of lights show every other slow flashes. This indicates your heater may have a flame failure. There could be trouble with its gas supply, gas valve or ignitor control. Contact us at 301-960-3247 for help.
  8. A single light flickers slowly while the other remains steady. This usually means your HVAC system’s limit switch is experiencing an error. The switch prevents your heater from becoming too warm. Reach out to the pros at H&C Heating and Cooling for support.

Heater Blower Runs But No Warm Air

Here’s what could be wrong when you observe your heating equipment’s blower fan running, but you aren’t receiving any warm air.

  • The duo of lights display every other quick flickers. This indicates your furnace ignitor may be broken. This piece kindles energy in your HVAC equipment to create warm air and should be fixed by a technician from H&C Heating and Cooling.

Depend on Us for Expert Furnace Repair

When you need to have your heating system fixed fast, turn to the technicians at H&C Heating and Cooling. Our pros will fix the issue without delay and have your residence feeling cozy again in a short time. Contact us at 301-960-3247 or contact us online to get an appointment today.