Lennox Furnace Error Code 270 Solved in West Chester

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

This shows you that your furnace ignitor can’t turn on the flame. After five failed tries, the furnace will quit trying to ignite. It will then go into Watchguard mode for about an hour for your protection.

When your ignitor stops working, it’s safer to count on our ACE-certified technicians. They’ve gone through important training, so you can rest easy knowing they’ll discover what’s causing the furnace error and will repair 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 up your house.

Here’s how a furnace ignitor works:

  • Thermostat launches call for heat.
  • Furnace ignitor and blower become triggered.
  • Ignitor heats to as hot as 2,500 degrees Fahrenheit and ignites burner gas.

A furnace ignitor should last roughly three to five years before it breaks and needs to be changed out. It can break down sooner if you don’t replace your air filter regularly, since a clogged one can cause your furnace to short cycle.

What Happens When a Furnace Ignitor Stops Working

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

You might see short 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 time it takes to remedy it.

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

  • 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 usual 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 knowledgable technicians at Stevenson Service Experts. We’ll fix your furnace and quickly get your heat working again.

Call us at or schedule an appointment online today.