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

Its motherboard has double LED lights that can display a fault code. Depending on the failure, your heater could show continuous or flashing lights.

Though there are various simple HVAC adjustments you can complete on your own, many tasks are best left to the professionals. When your furnace won’t turn on or put out warmth, get in touch with Ameri-Tec at 717-479-4950 for professional furnace repair in Narvon.

Our specialists will swiftly determine and repair the problem, even if you don’t have a Lennox heating system. We can repair any brands or configuration—and get the warmth returned to your house quickly.

What Does the Flashing Light on My Furnace Mean?

Your furnace relies on lights to flash code when it requires repairs. It also uses these lights to tell you it’s heating like it should.

Regular heating involves:

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

If you see a solitary light going on and off slowly and the other going on and off rapidly, your furnace might have a low flame signal. This can take place even when your furnace is running like it should. It means the flame sensing rod might be dirty or in the incorrect area on the burner. Reach out to us at 717-479-4950 for support.

Here are some of the most typical faults for Lennox heaters.

Heating System Will Not Kick On

Here are many of the light patterns you may see when your heat will not or keep running. The majority of these problems must be handled by a specialist, such as one from Ameri-Tec.

  1. The pair of LED lights are extinguished. This means your heating system might not be receiving power. Examine the breaker box to make sure the heating system fuse is not tripped. You should reset the fuse if it is in the “off” position. If it promptly turns off after you reset it, don’t touch the breaker and contact us at 717-479-4950.
  2. An individual light is stable and the other is flashing slowly. This shows the flame rollout switch is likely not working right. The part is a critical safety tool that aids in stopping fires and carbon monoxide. You shouldn’t attempt to repair this problem without professional help.
  3. A single light is blinking quickly and the other is flashing slowly. This often signifies power polarity has been reversed. Your heating system may have a wiring error that requires professional aid from Ameri-Tec.
  4. Both lights are flashing slowly. This signifies your furnace’s blower motor probably isn’t operating. This piece moves heated air from the furnace into your home. We can help in determining what’s causing a problem with this piece.
  5. An individual light is flickering slowly and the other is flickering rapidly. This indicates your heater could have low voltage or a short circuit. Get in touch with our technicians at 717-479-4950 for assistance.
  6. One light is blinking on, on, off while the other blinks on, off, on. This means there might be a fault with your HVAC system’s control board or wiring. Ameri-Tec can pinpoint the problem and fix it.
  7. The pair of lights display every other slow flashes. This indicates your heater may have a flame problem. There might be a problem with its gas supply, gas valve or ignitor control. Reach out to us at 717-479-4950 for help.
  8. An individual light flashes slowly while the other stays continuous. This typically means your HVAC system’s limit switch is malfunctioning. The switch prevents your heater from becoming too warm. Get in touch with the pros at Ameri-Tec for support.

Heating System Blower Operates But No Warmth

Here’s what might be broken when you observe your heater’s blower fan working, but you aren’t gaining any warm air.

  • Both lights display every other quick flickers. This indicates your furnace ignitor could not be working. This component lights energy in your heater to produce heat and should be repaired by a technician from Ameri-Tec.

Depend on Us for Skilled Furnace Repair

When you need to have your heating system repaired quickly, trust the specialists at Ameri-Tec. Our pros will take care of the error quickly and have your space feeling cozy again in no time. Get in touch with us at 717-479-4950 or contact us online to request an appointment today.