Lennox Furnace Error Code 270 Solved in Fort Worth

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

This indicates your furnace ignitor can’t start 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 protection.

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

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 space.

Here’s how a furnace ignitor works:

  • Thermostat launches 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 approximately three to five years before it cracks and has to be replaced. It can wear out sooner if you don’t replace your air filter regularly, since a dusty one can cause your heating system to short cycle.

What Happens When a Furnace Ignitor Stops Working

Your furnace will tell 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 fast flashes or an alternating slow flash as it shares a fault code.

Estimated Repair Cost for Furnace Error Code 270

The bill to restore your furnace hinges on what the issue is with it and the amount of time it takes to repair 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 actually lighting the burner and that there are no obstructions or cracked hoses within your home.

An ignitor always seems to fail when you need it most, resulting in an after-hours trip charge.

Here’s the typical costs to replace it:

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

Rely on 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 running again.

Call us at or schedule an appointment online today.