While your Lennox® heater isn’t able to talk to you, it possesses a procedure to tell you about a furnace error.
Its control board has twin LED lights that can show a fault code. Depending on the fault, your heating system may use continuous or flashing lights.
While there are some simple furnace adjustments you can take care of on your own, many fixes are best left to the professionals. When your furnace refuses to kick on or provide heat, contact Evenaire Heating & Air Conditioning at 512-355-1482 for experienced furnace repair in Pflugerville.
Our specialists will speedily detect and fix the breakdown, even if you don’t use a Lennox heating system. We can repair all kinds or makes—and get the heat reintroduced to your house quickly.
What Does the Flickering Light on My Furnace Mean?
Your heating system depends on lights to flash code when it isn’t working right. It also engages this setup to tell you it’s operating correctly.
Normal heating involves:
- Concurrent slow flash—heating system running correctly.
- Both lights flash fast—furnace is initiating the call for heat.
If you notice a single light going on and off slowly and the other going on and off quickly, your heater might have a low flame signal. This can happen even when your furnace is working correctly. It means the flame sensing rod might need to be cleaned or in the bad location on the burner. Reach out to us at 512-355-1482 for help.
Here are several other of the most typical problems for Lennox heaters.
Heater Won’t Turn On
Here are many of the light arrangements you might notice when your heater will not or keep operating. The bulk of these errors need to be repaired by a specialist, for instance from Evenaire Heating & Air Conditioning.
- Both LED lights aren’t lit. This indicates your heater might not have power. Examine the breaker box to ensure the heating system fuse isn’t tripped. Attempt to reset the fuse if it’s in the “off” spot. If it instantly flips after a subsequent reset, don’t try to reset it again and call us at 512-355-1482.
- A single light is stable and the other is flashing slowly. This signifies the flame rollout switch is possibly malfunctioning. The part is a critical safety device that helps in avoiding fires and carbon monoxide. You shouldn’t seek to fix this fault yourself.
- One light is flashing quickly and the other is flickering slowly. This typically signifies power polarity has been reversed. Your furnace could have a wiring issue that requires expert help from Evenaire Heating & Air Conditioning.
- All lights are flickering slowly. This signifies your furnace’s blower motor likely isn’t operating. This part moves warm air from the furnace into your home. We can aid in pinpointing what’s causing an issue with this part.
- A single light is blinking slowly and the other is blinking fast. This signifies your heating system might have not enough voltage or a short circuit. Contact our technicians at 512-355-1482 for support.
- One light is flashing on, on, off while the other flashes on, off, on. This signifies there could be trouble with your heater’s control board or wiring. Evenaire Heating & Air Conditioning can locate the problem and take care of it.
- The duo of lights show every other slow blinks. This means your heating system may have a flame failure. There might be a problem with its gas supply, gas valve or ignitor control. Call us at 512-355-1482 for help.
- A single light flashes slowly while the other stays continuous. This usually means your heater’s limit switch is experiencing an error. The switch prevents your heating system from becoming too warm. Call the specialists at Evenaire Heating & Air Conditioning for support.
Heater Blower Operates But No Warm Air
Here’s what may be at fault when you hear your heater’s blower fan working, but you aren’t gaining any warm air.
- Both lights are showing every other quick blinks. This signifies your furnace ignitor might not be working. This component ignites energy in your HVAC equipment to create heat and should be fixed by a technician from Evenaire Heating & Air Conditioning.
Depend on Us for Professional Furnace Repair
When you have to get your HVAC equipment fixed fast, turn to the experts at Evenaire Heating & Air Conditioning. Our techs will take care of the error without delay and have your residence feeling relaxing again in a short time. Contact us at 512-355-1482 or contact us online to request an appointment today.