While your Lennox® furnace isn’t able to chat with you, it does have a process to get your attention when there’s a furnace error.
Its motherboard has double LED lights that can share a fault code. Based on the malfunction, your heater may show continuous or flashing lights.
Though there are certain elementary heating fixes you can take care of yourself, many fixes are best taken care of by the professionals. When your furnace won’t turn on or deliver heat, contact GV Heating & Air at 763-535-2000 for skilled furnace repair in Crystal and Twin Cities.
Our technicians will speedily identify and take care of the breakdown, even if you don’t use a Lennox heater. We can repair all kinds or models—and get the comfort reintroduced to your home fast.
What Does the Blinking Light on My Furnace Mean?
Your heating system depends on lights to flash code when it is malfunctioning. It also works these lights to relay it’s working properly.
Normal operation includes:
- Concurrent slow flash—furnace operating properly.
- Simultaneous fast flash—heater is initiating the call for heat.
If you see a solitary light blinking slowly and the other flashing rapidly, your heater might have a low flame signal. This can occur even when your heater is running properly. It means the flame sensing rod might need to be cleaned or in the bad location on the burner. Reach out to us at 763-535-2000 for support.
Here are a few other of the most common errors for Lennox heaters.
Heating System Won’t Turn On
Here are many of the light sequences you may notice when your furnace refuses to or keep operating. The majority of these problems need to be fixed by a professional, like one from GV Heating & Air.
- The pair of LED lights are extinguished. This means your HVAC system might not be receiving power. Find the breaker box to make sure the furnace fuse isn’t flipped. Try resetting the fuse if it’s in the “off” spot. If it promptly trips following a reset, don’t try to reset it again and get in touch with us us at 763-535-2000.
- A single light is continuous and the other is flickering slowly. This shows the flame rollout switch is possibly not working right. The component is a critical safety device that aids in preventing fires and carbon monoxide. You shouldn’t seek to fix this problem yourself.
- One light is blinking fast and the other is flickering slowly. This often signifies power polarity has been reversed. Your heating system may have a wiring issue that needs specialized help from GV Heating & Air.
- All lights are flickering slowly. This indicates your furnace’s blower motor possibly isn’t operating. This piece circulates heated air from the HVAC system into your residence. We can help in determining what’s wrong with this part.
- An individual light is flashing slowly and the other is flashing fast. This signifies your HVAC system might have low voltage or a short circuit. Reach out to our experts at 763-535-2000 for support.
- One light is flickering on, on, off while the other flashes on, off, on. This means there could be trouble with your heater’s control panel or wiring. GV Heating & Air can pinpoint the issue and handle it.
- The duo of lights display alternate slow flickers. This indicates your HVAC system may have a flame error. There might be a problem with its gas supply, gas valve or ignitor control. Get in touch with us at 763-535-2000 for support.
- A single light flickers slowly while the other stays solid. This usually means your HVAC system’s limit switch is not working. The switch stops your HVAC system from getting too hot. Call the professionals at GV Heating & Air for support.
Heater Blower Works But No Warmth
Here’s what might be wrong when you observe your heater’s blower fan on, but you aren’t getting any heated air.
- The duo of lights display every other rapid flickers. This means your furnace ignitor might not be in working order. This piece lights fuel in your heating system to create warmth and should be repaired by a technician from GV Heating & Air.
Depend on Us for Expert Furnace Repair
When you need to have your heating system fixed quickly, depend on the specialists at GV Heating & Air. Our technicians will fix the fault right away and have your space feeling comfortable again soon. Reach out to us at 763-535-2000 or contact us online to request an appointment right away.