While your Lennox® heating system isn’t able to speak to you, it does have a way to get your attention when there’s a furnace error.
Its control panel has twin LED lights that can display a fault code. Depending on the malfunction, your heating system might display solid or flashing lights.
Although there are some elementary HVAC repairs you can finish on your own, many fixes are best handled by experts. When your heating system refuses to start or deliver warm air, call Custom Air Systems Inc at 772-247-2283 for professional furnace repair in Port St. Lucie.
Our specialists will quickly determine and take care of the problem, even if you don’t own a Lennox heater. We can repair all types or configuration—and get the heat returned to your residence fast.
What Does the Blinking Light on My Heating System Mean?
Your heating system relies on lights to flash code when it isn’t working right. It also works this setup to let you know it’s working like it should.
Correct function includes:
- Simultaneous slow flash—furnace operating correctly.
- Simultaneous fast flash—heating system is initiating the call for heat.
If you realize that a lone light flashing slowly and the other blinking fast, your heating system could be experiencing a low flame signal. This can occur even when your heater is working correctly. It indicates the flame sensing rod may be dirty or in the incorrect spot on the burner. Call us at 772-247-2283 for assistance.
Here are some of the most typical problems for Lennox furnaces.
Furnace Won’t Start
Here are many of the light patterns you might observe when your furnace refuses to or keep operating. The majority of these problems have to be handled by a professional, for instance from Custom Air Systems Inc.
- The duo of LED lights aren’t lit. This indicates your heater might not be receiving power. Find the breaker box to confirm the heater fuse has not tripped. You should reset the fuse if it’s in the “off” position. If it instantly flips after a subsequent reset, don’t touch the breaker and contact us at 772-247-2283.
- An individual light is continuous and the other is flickering slowly. This implies the flame rollout switch is may be malfunctioning. The part is a critical safety mechanism that helps in avoiding fires and carbon monoxide. You shouldn’t try to fix this problem on your own.
- A single light is flashing rapidly and the other is flickering slowly. This often means power polarity has been inverted. Your heating system could have a wiring issue that calls for expert assistance from Custom Air Systems Inc.
- All lights are blinking slowly. This means your heater’s blower motor likely isn’t working. This piece distributes hot air from the heating system into your residence. We can aid in determining what’s wrong with this piece.
- An individual light is flashing slowly and the other is flickering fast. This indicates your heater may have insufficient voltage or a short circuit. Call our technicians at 772-247-2283 for help.
- One light is flickering on, on, off while the other flashes on, off, on. This indicates there might be a malfunction with your HVAC system’s control panel or wiring. Custom Air Systems Inc can find the problem and repair it.
- The duo of lights display alternating slow flashes. This indicates your HVAC system likely has a flame problem. There could be a problem with its gas supply, gas valve or ignitor control. Reach out to us at 772-247-2283 for help.
- A single light flickers slowly while the other remains steady. This often means your heating system’s limit switch is not working. The switch stops your heater from getting too hot. Get in touch with the professionals at Custom Air Systems Inc for support.
Furnace Blower Operates But No Warmth
Here’s what could be broken when you hear your heating equipment’s blower fan working, but you aren’t getting any warm air.
- The pair of lights are giving every other fast blinks. This signifies your furnace ignitor might not be working. This piece kindles fuel in your furnace to produce heat and should be repaired by an expert from Custom Air Systems Inc.
Trust Us for Expert Furnace Repair
When you have to get your HVAC equipment repaired without delay, trust the specialists at Custom Air Systems Inc. Our techs will repair the error quickly and have your rooms feeling comfortable again in no time. Contact us at 772-247-2283 or contact us online to request an appointment right away.