While your Lennox® furnace cannot speak to you, it has a method to get your attention when there’s a furnace error.

Its motherboard has twin LED lights that can share a fault code. Subject to the issue, your heater might use steady or flashing lights.

Although there are a few basic furnace fixes you can do without an expert, most fixes are best taken care of by HVAC technicians. When your heater refuses to kick on or provide warmth, contact Halverson Brothers Inc at 715-352-4052 for skilled furnace repair in Menomonie and western Wisconsin.

Our technicians will speedily discover and repair the malfunction, even if you don’t have a Lennox heater. We can fix whichever brands or configuration—and get the heat reintroduced to your house without delay.

What Does the Flickering Light on My Heater Mean?

Your heater depends on lights to flash code when it requires repairs. It also engages this system to let you know it’s operating like it should.

Correct function includes:

  • Concurrent slow flash—furnace working like it should.
  • Simultaneous fast flash—heater is beginning to call for heat.

If you see a lone light flashing slowly and the other going on and off rapidly, your furnace could be having a low flame signal. This can happen even when your furnace is heating like it should. It indicates the flame sensing rod might need to be cleaned or in the incorrect location on the burner. Call us at 715-352-4052 for assistance.

Here are a few other of the most common problems for Lennox furnaces.

Heating System Won’t Start

Here are many of the light patterns you may observe when your heater will not or keep heating. The majority of these issues must be handled by a technician, for instance from Halverson Brothers Inc.

  1. The pair of LED lights are extinguished. This signifies your HVAC system might not be receiving power. Examine the breaker box to confirm the heater fuse has not tripped. You should reset the fuse if it’s in the “off” spot. If it immediately trips after you reset it, don’t touch the breaker and call us at 715-352-4052.
  2. One light is continuous and the other is flickering slowly. This implies the flame rollout switch is possibly open. The switch is an essential safety mechanism that assists in avoiding fires and carbon monoxide. You shouldn’t try to fix this problem yourself.
  3. A single light is flashing fast and the other is flashing slowly. This often means power polarity has been reversed. Your heating system may have a wiring problem that needs specialized support from Halverson Brothers Inc.
  4. The duo of lights are flickering slowly. This means your heater’s blower motor likely isn’t operating. This part moves warm air from the HVAC system into your house. We can assist in figuring out what’s wrong with this part.
  5. An individual light is flashing slowly and the other is flickering fast. This signifies your HVAC system might have low voltage or a short circuit. Contact our specialists at 715-352-4052 for assistance.
  6. One light is flickering on, on, off while the other flickers on, off, on. This signifies there could be trouble with your heating system’s control panel or wiring. Halverson Brothers Inc can locate the problem and handle it.
  7. The duo of lights are using alternating slow flashes. This means your heating system possibly has a flame error. There might be a problem with its gas supply, gas valve or ignitor control. Get in touch with us at 715-352-4052 for help.
  8. A single light flashes slowly while the other stays solid. This usually indicates your HVAC system’s limit switch is experiencing an error. The switch keeps your HVAC equipment from overheating. Reach out to the professionals at Halverson Brothers Inc for support.

Heating System Blower Works But No Warmth

Here’s what could be wrong when you hear your heater’s blower fan on, but you aren’t gaining any warmth.

  • Both lights are showing alternate fast blinks. This means your furnace ignitor could be broken. This component kindles fuel in your heating system to make warm air and should be fixed by a specialist from Halverson Brothers Inc.

Trust Us for Professional Furnace Repair

When you have to have your HVAC equipment repaired fast, trust the experts at Halverson Brothers Inc. Our techs will handle the issue quickly and have your space feeling cozy again in no time. Get in touch with us at 715-352-4052 or contact us online to request an appointment today.