While your Lennox® heater can’t talk to you, it does have a process to tell you about a furnace error.
Its control board has twin LED lights that can show a fault code. Depending on the issue, your heater may show steady or flashing lights.
Although there are some elementary HVAC repairs you can complete on your own, many repairs are best left to HVAC technicians. When your furnace refuses to turn on or give warmth, call Van Haaften Plumbing & Heating at 641-628-3621 for professional furnace repair in Pella.
Our technicians will speedily determine and repair the issue, even if you don’t use a Lennox heater. We can fix all types or configuration—and get the warmth reintroduced to your residence quickly.
What Does the Blinking Light on My Furnace Mean?
Your heater relies on lights to flash code when it isn’t working right. It also uses these lights to tell you it’s working like it should.
Regular heating consists of:
- Concurrent slow flash—heating system working like it should.
- Both lights flash fast—furnace is beginning to call for heat.
If you see a single light going on and off slowly and the other flashing fast, your heating system may be experiencing a low flame signal. This can occur even when your heater is running correctly. It signifies the flame sensing rod might be dirty or in the bad area on the burner. Reach out to us at 641-628-3621 for assistance.
Here are some of the most common problems for Lennox heaters.
Heater Won’t Turn On
Here are a few of the light patterns you might notice when your heating system refuses to or keep operating. The bulk of these problems must be taken care of by an expert, like one from Van Haaften Plumbing & Heating.
- The duo of LED lights are extinguished. This means your heating system might not be receiving power. Examine the breaker box to ensure the furnace fuse hasn’t triggered. You should reset the fuse if it’s in the “off” area. If it rapidly turns off after a subsequent reset, don’t touch the breaker and contact us at 641-628-3621.
- An individual light is continuous and the other is flashing slowly. This implies the flame rollout switch is likely open. The switch is a critical safety device that aids in stopping fires and carbon monoxide. You shouldn’t seek to take care of this issue without professional help.
- One light is flashing quickly and the other is blinking slowly. This often signifies power polarity has been reversed. Your heater may have a wiring fault that needs specialized aid from Van Haaften Plumbing & Heating.
- All lights are flashing slowly. This indicates your heater’s blower motor likely isn’t operating. This component moves warm air from the heater into your residence. We can help in determining what’s causing an issue with this part.
- One light is flashing slowly and the other is flickering fast. This means your HVAC system could have low voltage or a short circuit. Get in touch with our technicians at 641-628-3621 for help.
- One light is flashing on, on, off while the other blinks on, off, on. This indicates there may be a malfunction with your heater’s motherboard or wiring. Van Haaften Plumbing & Heating can locate the fault and handle it.
- The duo of lights display every other slow flashes. This indicates your heater possibly has a flame issue. There could be trouble with its gas supply, gas valve or ignitor control. Reach out to us at 641-628-3621 for assistance.
- A single light flickers slowly while the other stays continuous. This often indicates your heating system’s limit switch is malfunctioning. The switch stops your HVAC system from becoming too warm. Call the specialists at Van Haaften Plumbing & Heating for support.
Heater Blower Operates But No Warm Air
Here’s what might be broken when you hear your heater’s blower fan on, but you aren’t gaining any warm air.
- Both lights are giving alternate fast flickers. This signifies your furnace ignitor may not be in working order. This piece kindles gas in your HVAC equipment to produce heat and should be serviced by a technician from Van Haaften Plumbing & Heating.
Depend on Us for Expert Furnace Repair
When you need to have your heating system repaired without delay, depend on the specialists at Van Haaften Plumbing & Heating. Our techs will take care of the fault quickly and have your house feeling comfortable again soon. Reach out to us at 641-628-3621 or contact us online to request an appointment now.