Lennox Furnace Error Code 270 Solved in Rochester

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

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

When your ignitor ceases working, it’s better to depend on our NATE-certified technicians. They’ve gone through rigorous education, so you can rest easy knowing they’ll discover what’s generating the furnace error and will mend it to your satisfaction.

We are confident in the quality of our furnace repair in Rochester so much, we back it with a 100% Satisfaction Guarantee* 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 triggered.
  • Ignitor warms to as hot as 2,500 degrees Fahrenheit and ignites burner gas.

A furnace ignitor should last about three to five years before it fractures and must be replaced. It can wear out 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 tell 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 quick flashes or an alternating slow flash as it shares a fault code.

Estimated Repair Cost for Furnace Error Code 270

The cost to fix your furnace depends on what the issue is with it and how long 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 legitimately lighting the burner and that there are no interferences or cracked hoses within your system.

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

Here’s the average costs to replace it:

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

Rely on the Experts at Strogen's Service Experts Heating & Air Conditioning

When you need Expert furnace repair, you can rely on our highly trained technicians at Strogen's Service Experts Heating & Air Conditioning. We’ll fix your furnace and quickly get your heat working again.

Call us at 603-923-4570 or schedule an appointment online today.