While your Lennox® heater isn’t able to chat with you, it does have a process to tell you about a furnace error.
Its control board has twin LED lights that can display a fault code. Subject to the malfunction, your furnace might use continuous or flashing lights.
Though there are some elementary HVAC fixes you can complete on your own, most tasks are best left to experts. When your heating system won’t turn on or provide heated air, reach out to Rescue Heating & Air at 361-265-4371 for experienced furnace repair in Alice.
Our specialists will quickly determine and repair the issue, even if you don’t use a Lennox heating system. We can fix all types or makes—and get the comfort reintroduced to your house fast.
What Does the Flickering Light on My Furnace Mean?
Your heating system relies on lights to flash code when it is malfunctioning. It also engages this system to tell you it’s operating properly.
Regular function includes:
- Simultaneous slow flash—heater working correctly.
- Simultaneous fast flash—heating system is beginning to call for heat.
If you see a lone light flashing slowly and the other flashing fast, your furnace may be having a low flame signal. This can occur even when your heating system is working correctly. It signifies the flame sensing rod might have buildup or in the incorrect location on the burner. Contact us at 361-265-4371 for support.
Here are some of the most common errors for Lennox HVAC systems.
Furnace Won’t Start
Here are many of the light arrangements you could notice when your furnace refuses to or keep running. Most of these errors must be repaired by a specialist, for instance from Rescue Heating & Air.
- All LED lights aren’t lit. This means your heating system might not be receiving power. Look at the breaker box to confirm the furnace fuse isn’t triggered. Try resetting the fuse if it is in the “off” position. If it promptly flips following a reset, don’t try to reset it again and contact us at 361-265-4371.
- One light is continuous and the other is blinking slowly. This implies the flame rollout switch is possibly malfunctioning. The switch is a critical safety guard that assists in stopping fires and carbon monoxide. You shouldn’t try to fix this problem yourself.
- A single light is flashing rapidly and the other is blinking slowly. This typically indicates power polarity has been reversed. Your heating system could have a wiring error that calls for expert support from Rescue Heating & Air.
- The pair of lights are flickering slowly. This means your furnace’s blower motor likely isn’t operating. This component sends warm air from the heater into your home. We can aid in determining what’s wrong with this part.
- One light is flickering slowly and the other is blinking rapidly. This means your heater may have not enough voltage or a short circuit. Call our technicians at 361-265-4371 for support.
- One light is flickering on, on, off while the other flashes on, off, on. This means there may be trouble with your HVAC system’s control panel or wiring. Rescue Heating & Air can locate the issue and repair it.
- Both lights are using alternating slow flickers. This indicates your heater likely has a flame problem. There might be trouble with its gas supply, gas valve or ignitor control. Call us at 361-265-4371 for help.
- A single light flickers slowly while the other is solid. This usually signifies your HVAC system’s limit switch is experiencing an error. The switch prevents your HVAC equipment from overheating. Call the pros at Rescue Heating & Air for help.
Furnace Blower Runs But No Warmth
Here’s what might be broken when you hear your heater’s blower fan on, but you aren’t receiving any warmth.
- The duo of lights are showing alternate quick flickers. This means your furnace ignitor may be broken. This component ignites fuel in your heating system to make heat and should be serviced by a specialist from Rescue Heating & Air.
Trust Us for Professional Furnace Repair
When you need to get your HVAC equipment fixed without delay, depend on the technicians at Rescue Heating & Air. Our techs will repair the error quickly and have your residence feeling cozy again in no time. Reach out to us at 361-265-4371 or contact us online to get an appointment today.