While your Lennox® heater cannot talk to you, it does have a procedure to tell you about a furnace error.

Its control panel has a set of LED lights that can show a fault code. Subject to the fault, your furnace may use solid or flashing lights.

While there are various basic HVAC repairs you can finish on your own, the majority of repairs are best taken care of by experts. When your heater won’t turn on or deliver heat, call Clean Air HVAC at 925-233-6238 for skilled furnace repair in Pacheco.

Our experts will quickly identify and fix the problem, even if you don’t have a Lennox heating system. We can repair all brands or models—and get the comfort returned to your home quickly.

What Does the Blinking Light on My Heater Mean?

Your heating system relies on lights to flash code when it is malfunctioning. It also works these lights to let you know it’s operating like it should.

Correct heating consists of:

  • Concurrent slow flash—heating system heating properly.
  • Simultaneous fast flash—heating system is starting to call for heat.

If you realize that a single light flashing slowly and the other flashing quickly, your heating system might have a low flame signal. This can occur even when your furnace is working properly. It indicates the flame sensing rod could be dirty or in the incorrect spot on the burner. Contact us at 925-233-6238 for support.

Here are several other of the most routine issues for Lennox heaters.

Heating System Refuses to Start

Here are a few of the light arrangements you may see when your heating system refuses to or keep heating. The bulk of these problems need to be handled by an expert, such as one from Clean Air HVAC.

  1. The pair of LED lights are extinguished. This signifies your heating system might not have power. Examine the breaker box to ensure the heating system fuse isn’t tripped. You should reset the fuse if it is in the “off” spot. If it rapidly turns off after you reset it, don’t touch the breaker and call us at 925-233-6238.
  2. One light is stable and the other is blinking slowly. This implies the flame rollout switch is likely malfunctioning. The part is a critical safety tool that assists in stopping fires and carbon monoxide. You shouldn’t try to fix this malfunction yourself.
  3. An individual light is flashing rapidly and the other is blinking slowly. This often indicates power polarity has been inverted. Your heater could have a wiring fault that requires specialized support from Clean Air HVAC.
  4. Both lights are flashing slowly. This signifies your heater’s blower motor likely isn’t running. This component sends heated air from the HVAC system into your residence. We can aid in pinpointing what’s causing an issue with this piece.
  5. A single light is flashing slowly and the other is flickering fast. This means your heater might have insufficient voltage or a short circuit. Reach out to our experts at 925-233-6238 for help.
  6. One light is flickering on, on, off while the other flickers on, off, on. This means there might be a malfunction with your heater’s motherboard or wiring. Clean Air HVAC can determine the problem and repair it.
  7. The pair of lights show every other slow blinks. This signifies your HVAC system likely has a flame issue. There may be a problem with its gas supply, gas valve or ignitor control. Contact us at 925-233-6238 for assistance.
  8. A single light flickers slowly while the other remains steady. This usually means your heating system’s limit switch is not working. The switch stops your HVAC system from becoming too warm. Get in touch with the specialists at Clean Air HVAC for assistance.

Furnace Blower Runs But No Warm Air

Here’s what might be wrong when you notice your heating system’s blower fan on, but you aren’t receiving any heated air.

  • Both lights are giving alternate quick flickers. This signifies your furnace ignitor could not be working. This part kindles energy in your furnace to produce warmth and should be serviced by a specialist from Clean Air HVAC.

Turn to Us for Skilled Furnace Repair

When you need to have your heating system fixed fast, trust the specialists at Clean Air HVAC. Our technicians will fix the error right away and have your house feeling relaxing again in no time. Reach out to us at 925-233-6238 or contact us online to get an appointment now.