Lennox Furnace Error Code 270 Solved in Hillsborough

Feeling a chill because you’re getting error code 270 from your Lennox® furnace?

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

When your ignitor isn’t working, it’s best to rely on our ACE-certified technicians. They’ve gone through rigorous education, so you can rest easy knowing they’ll determine what’s generating the furnace error and will fix it to your contentment.

We believe 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 begins call for heat.
  • Furnace ignitor and blower become activated.
  • Ignitor becomes as hot as 2,500 degrees Fahrenheit and ignites burner gas.

A furnace ignitor should last about three to five years before it cracks and needs to be replaced. It can wear out sooner if you don’t replace your air filter regularly, since a dirty one can cause your furnace to short cycle.

What Happens When a Furnace Ignitor Fails

Your furnace will demonstrate for you there’s a problem 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 quick flashes or an alternating slow flash as it shares a fault code.

Estimated Repair Cost for Furnace Error Code 270

The price to restore your furnace rests on what’s wrong with it and how long it takes to remedy it.

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

  • Gas flow
  • Flame sensor current
  • Air filter

Your HVAC pro will also make sure the ignitor is legitimately lighting the burner and that there are no blockages or cracked hoses within your system.

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

Here’s the average costs to replace it:

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

Trust the Experts at Fras-Air/General Service Experts

When you need Expert furnace repair, you can rely on our highly knowledgable technicians at Fras-Air/General Service Experts. We’ll repair your furnace and quickly get your heat running again.

Call us at or schedule an appointment online today.

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