While your Lennox® furnace cannot talk to you, it has a method to get your attention when there’s a furnace error.

Its motherboard has double LED lights that can show a fault code. Based on the issue, your heating system might use steady or flashing lights.

Though there are some elementary HVAC repairs you can take care of on your own, many services are best left to HVAC technicians. When your furnace won’t start or deliver heated air, get in touch with Aggressive Mechanical at 732-806-5536 for skilled furnace repair in Neptune City.

Our technicians will speedily discover and take care of the breakdown, even if you don’t have a Lennox heater. We can fix whichever kinds or configuration—and get the heat reintroduced to your home fast.

What Does the Blinking Light on My Heater Mean?

Your heating system relies on lights to flash code when it isn’t working right. It also uses these lights to let you know it’s working correctly.

Normal heating consists of:

  • Concurrent slow flash—furnace working correctly.
  • Simultaneous fast flash—furnace is starting to call for heat.

If you notice a single light going on and off slowly and the other flashing fast, your heater may be experiencing a low flame signal. This can happen even when your furnace is running properly. It signifies the flame sensing rod may need to be cleaned or in the wrong location on the burner. Call us at 732-806-5536 for support.

Here are a few other of the most common issues for Lennox heating systems.

Heating System Won’t Kick On

Here are a few of the light sequences you might notice when your heater won’t turn on or keep running. The majority of these errors need to be fixed by a technician, such as one from Aggressive Mechanical.

  1. All LED lights are off. This indicates your heater might not have electricity. Look at the breaker box to make sure the heater fuse is not flipped. You should reset the fuse if it’s in the “off” spot. If it immediately turns off after a subsequent reset, don’t try to reset it again and call us at 732-806-5536.
  2. One light is stable and the other is blinking slowly. This shows the flame rollout switch is possibly malfunctioning. The part is a critical safety mechanism that aids in avoiding fires and carbon monoxide. You shouldn’t try to repair this problem yourself.
  3. A single light is flickering rapidly and the other is flashing slowly. This often signifies power polarity has been inverted. Your furnace could have a wiring error that calls for professional help from Aggressive Mechanical.
  4. All lights are blinking slowly. This signifies your heater’s blower motor probably isn’t working. This part moves hot air from the heating system into your house. We can help in pinpointing what’s causing a problem with this component.
  5. One light is blinking slowly and the other is flashing quickly. This signifies your heater may have low voltage or a short circuit. Reach out to our specialists at 732-806-5536 for support.
  6. One light is flickering on, on, off while the other flashes on, off, on. This signifies there could be a malfunction with your HVAC system’s control panel or wiring. Aggressive Mechanical can determine the error and repair it.
  7. The duo of lights show every other slow blinks. This indicates your HVAC equipment likely has a flame issue. There could be trouble with its gas supply, gas valve or ignitor control. Get in touch with us at 732-806-5536 for assistance.
  8. An individual light flickers slowly while the other is steady. This often indicates your HVAC system’s limit switch is not working. The switch prevents your HVAC system from overheating. Reach out to the pros at Aggressive Mechanical for assistance.

Furnace Blower Operates But No Warmth

Here’s what could be at fault when you notice your heating system’s blower fan running, but you aren’t receiving any heated air.

  • The duo of lights are showing every other fast blinks. This means your furnace ignitor could be broken. This piece ignites fuel in your furnace to make heat and should be repaired by an expert from Aggressive Mechanical.

Turn to Us for Expert Furnace Repair

When you need to have your HVAC equipment in working order fast, turn to the professionals at Aggressive Mechanical. Our techs will handle the fault right away and have your house feeling relaxing again in a short time. Contact us at 732-806-5536 or contact us online to request an appointment now.