While your Lennox® furnace isn’t able to talk to you, it has a method to communicate a furnace error.

Its control panel has a set of LED lights that can show a fault code. Subject to the failure, your heating system could show steady or flashing lights.

Though there are a few elementary heating fixes you can finish yourself, the majority of fixes are best taken care of by HVAC technicians. When your heating system won’t kick on or give heat, call Strine's at 717-383-4479 for skilled furnace repair in York.

Our technicians will speedily detect and repair the malfunction, even if you don’t have a Lennox heating system. We can service whichever kinds or models—and get the heat reintroduced to your home without delay.

What Does the Flashing Light on My Heater Mean?

Your heater depends on lights to flash code when it isn’t working right. It also engages this setup to tell you it’s operating properly.

Correct function involves:

  • Simultaneous slow flash—heating system working like it should.
  • Both lights flash fast—furnace is starting to call for heat.

If you notice a lone light blinking slowly and the other going on and off rapidly, your furnace might be having a low flame signal. This can occur even when your heater is heating correctly. It signifies the flame sensing rod might need to be cleaned or in the incorrect area on the burner. Contact us at 717-383-4479 for assistance.

Here are a few other of the most common errors for Lennox HVAC systems.

Furnace Refuses to Kick On

Here are some of the light arrangements you might notice when your heater won’t turn on or keep running. Most of these problems must be fixed by a professional, like one from Strine's.

  1. All LED lights are extinguished. This means your HVAC system might not have electricity. Go to the breaker box to confirm the furnace fuse isn’t flipped. You should reset the fuse if it is in the “off” spot. If it promptly turns off after you reset it, don’t touch the breaker and contact us at 717-383-4479.
  2. An individual light is continuous and the other is flickering slowly. This implies the flame rollout switch is possibly open. The component is a critical safety mechanism that helps in avoiding fires and carbon monoxide. You shouldn’t attempt to handle this malfunction yourself.
  3. An individual light is flashing quickly and the other is flickering slowly. This likely means power polarity has been transposed. Your heating system could have a wiring fault that requires expert help from Strine's.
  4. All lights are flickering slowly. This indicates your furnace’s blower motor likely isn’t working. This component moves warm air from the furnace into your space. We can help in pinpointing what’s causing a problem with this part.
  5. An individual light is flashing slowly and the other is blinking rapidly. This indicates your HVAC system could have low voltage or a short circuit. Reach out to our specialists at 717-383-4479 for help.
  6. One light is flickering on, on, off while the other blinks on, off, on. This means there could be a fault with your heater’s control panel or wiring. Strine's can pinpoint the problem and handle it.
  7. The duo of lights display alternate slow blinks. This indicates your heating system possibly has a flame issue. There may be a problem with its gas supply, gas valve or ignitor control. Contact us at 717-383-4479 for support.
  8. An individual light flickers slowly while the other remains solid. This typically means your HVAC equipment’s limit switch is malfunctioning. The switch stops your HVAC equipment from overheating. Call the professionals at Strine's for help.

Heating System Blower Operates But No Warmth

Here’s what may be wrong when you observe your heating system’s blower fan working, but you aren’t getting any warmth.

  • Both lights display every other fast flickers. This signifies your furnace ignitor may be broken. This component kindles gas in your heating system to make warmth and should be serviced by a technician from Strine's.

Turn to Us for Expert Furnace Repair

When you have to have your heating system repaired without delay, turn to the technicians at Strine's. Our techs will handle the issue quickly and have your space feeling relaxing again in a short time. Reach out to us at 717-383-4479 or contact us online to request an appointment right away.