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Lennox Furnace Error Code 270 Solved in Saint Charles

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

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

When your ignitor stops working, it’s better to count on our ACE-certified technicians. They’ve gone through detailed education, so you can rest easy knowing they’ll determine what’s creating the furnace error and will fix it to your contentment.

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 starts call for heat.
  • Furnace ignitor and blower become energized.
  • 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 cracks and must be changed out. It can stop working sooner if you don’t replace your air filter when needed, since a dusty one can cause your HVAC equipment to short cycle.

What Happens When a Furnace Ignitor Stops Working

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 bill to mend your furnace depends on the problem with it and the amount of 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 actually lighting the burner and that there are no blockages or cracked hoses within your equipment.

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

Here’s the typical 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 skilled technicians at Stevenson Service Experts. We’ll fix your furnace and quickly get your heat running again.

Call us at or schedule an appointment online today.

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