While your Lennox® heater cannot speak to you, it has a procedure to tell you about a furnace error.

Its motherboard has twin LED lights that can show a fault code. Depending on the issue, your heater may display continuous or flashing lights.

Although there are some basic heating fixes you can complete yourself, most fixes are best taken care of by HVAC technicians. When your furnace will not turn on or deliver heat, call Watts Electric & AC at 601-736-7362 for skilled furnace repair in Columbia.

Our specialists will speedily determine and take care of the problem, even if you don’t use a Lennox heating system. We can service all types or models—and get the warmth returned to your residence 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 this system to tell you it’s working like it should.

Regular heating consists of:

  • Concurrent slow flash—heater working like it should.
  • Both lights flash fast—heating system is initiating the call for heat.

If you notice a single light flashing slowly and the other blinking quickly, your heating system might be having a low flame signal. This can happen even when your furnace is heating correctly. It signifies the flame sensing rod might need to be cleaned or in the incorrect spot on the burner. Call us at 601-736-7362 for assistance.

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

Furnace Will Not Start

Here are a few of the light sequences you could observe when your heating system refuses to or keep heating. The majority of these errors have to be fixed by a technician, such as one from Watts Electric & AC.

  1. The duo of LED lights are extinguished. This means your heater might not have electricity. Look at the breaker box to confirm the furnace fuse hasn’t tripped. Attempt to reset the fuse if it is in the “off” spot. If it rapidly turns off following a reset, don’t try to reset it again and contact us at 601-736-7362.
  2. An individual light is stable and the other is flickering slowly. This implies the flame rollout switch is may be not working right. The part is a critical safety guard that aids in preventing fires and carbon monoxide. You shouldn’t try to handle this malfunction without professional help.
  3. One light is blinking quickly and the other is flashing slowly. This often indicates power polarity has been reversed. Your furnace might have a wiring fault that calls for specialized assistance from Watts Electric & AC.
  4. The pair of lights are flashing slowly. This indicates your heating system’s blower motor likely isn’t operating. This part distributes hot air from the heating system into your space. We can assist in determining what’s causing a problem with this part.
  5. A single light is flashing slowly and the other is flashing fast. This means your heating system could have insufficient voltage or a short circuit. Call our experts at 601-736-7362 for assistance.
  6. One light is flashing on, on, off while the other flickers on, off, on. This indicates there might be a malfunction with your heater’s control board or wiring. Watts Electric & AC can locate the issue and take care of it.
  7. The duo of lights are using alternate slow flashes. This means your heating system likely has a flame issue. There might be trouble with its gas supply, gas valve or ignitor control. Contact us at 601-736-7362 for support.
  8. A single light flickers slowly while the other remains solid. This often indicates your heating system’s limit switch is not working. The switch prevents your heating system from becoming too warm. Get in touch with the experts at Watts Electric & AC for support.

Heating System Blower Operates But No Warmth

Here’s what may be broken when you observe your heating system’s blower fan working, but you aren’t receiving any warm air.

  • The duo of lights are showing alternate rapid flashes. This means your furnace ignitor could not be working. This piece kindles gas in your furnace to produce warm air and should be repaired by an expert from Watts Electric & AC.

Depend on Us for Expert Furnace Repair

When you need to have your HVAC equipment in working order without delay, depend on the specialists at Watts Electric & AC. Our technicians will handle the issue quickly and have your house feeling relaxing again in no time. Contact us at 601-736-7362 or contact us online to get an appointment today.