Lennox Furnace Error Code 270 Solved in Rochester

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

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

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

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

A furnace ignitor should last roughly three to five years before it cracks and has to be replaced. It can break down sooner if you don’t replace your air filter regularly, since a dirty one can cause your heating system to short cycle.

What Happens When a Furnace Ignitor Stops Working

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 short flashes or an alternating slow flash as it shares a fault code.

Estimated Repair Cost for Furnace Error Code 270

The bill to fix your furnace depends on what’s wrong with it and how long 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 specialist 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, bringing about 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 running again.

Call us at or schedule an appointment online today.

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