Lennox Furnace Error Code 270 Solved in Boise

Feeling frigid because you’re noticing error code 270 from your Lennox® furnace?

This means your furnace ignitor can’t start the flame. After five failed tries, the furnace will stop trying to ignite. It will then switch into Watchguard mode for about an hour for your safety.

When your ignitor ceases working, it’s safer to rely on our ACE-certified technicians. They’ve gone through rigorous education, so you can rest easy knowing they’ll find out what’s causing the furnace error and will fix it to your standards.

We trust in the quality of our furnace repair* for a year.

How a Furnace Ignitor Works

This part ignites natural gas, which helps warm your home.

Here’s how a furnace ignitor works:

  • Thermostat starts call for heat.
  • Furnace ignitor and blower become activated.
  • Ignitor warms to as hot as 2,500 degrees Fahrenheit and ignites burner gas.

A furnace ignitor should last roughly three to five years before it fractures and needs to be changed out. It can stop working sooner if you don’t replace your air filter routinely, since a clogged one can cause your heating system to short cycle.

What Happens When a Furnace Ignitor Breaks Down

Your furnace will demonstrate for you there’s something wrong with a red flash from its indicator light, which it uses to communicate error codes. It has this red light to flash code, much like Morse code.

You might see fast flashes or an alternating slow flash as it shares a fault code.

Estimated Repair Cost for Furnace Error Code 270

The cost to restore your furnace rests on what the issue is with it and the time it takes to correct it.

Before your technician replaces your ignitor, he or she will investigate:

  • Gas flow
  • Flame sensor current
  • Air filter

Your HVAC specialist will also make sure the ignitor is truly lighting the burner and that there are no interferences or cracked hoses within your equipment.

An ignitor often fails when you need it most, prompting an after-hours trip charge.

Here’s the average costs to replace it:

  • $200 during normal service hours
  • $300 to $400 after hours

Turn to the Experts at Stevenson Service Experts

When you need Expert furnace repair, you can rely on our highly trained technicians at Stevenson Service Experts. We’ll correct your furnace and quickly get your heat functioning again.

Call us at or schedule an appointment online today.