Lennox Furnace Error Code 270 Solved in Sharonville

Getting cold because you’re seeing error code 270 from your Lennox® furnace?

This indicates your furnace ignitor can’t turn on the flame. After five failed efforts, the furnace will halt trying to ignite. It will then switch into Watchguard mode for about an hour for your protection.

When your ignitor isn’t working, it’s better to depend on our ACE-certified technicians. They’ve gone through important training, so you can rest easy knowing they’ll determine what’s generating 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 heat your home.

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 about three to five years before it fractures and has to be subbed out for a new part. It can stop working sooner if you don’t replace your air filter when needed, 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 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 depends on what the issue is with it and the amount of time it takes to remedy it.

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

  • Gas flow
  • Flame sensor current
  • Air filter

Your HVAC specialist will also make sure the ignitor is truly lighting the burner and that there are no interferences or cracked hoses within your home.

An ignitor often fails 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 Service Experts Heating, Air Conditioning & Plumbing

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

Call us at or schedule an appointment online today.

  • Eight Frequent Heating Misconceptions Debunked

    There are lots of myths out there about home heating that lead to confusion and inefficient furnace operation. It’s time to clear up these common misconceptions. Here, the heating authorities at Service Experts Heating, Air Conditioning & Plumbing reveal the truth behind the eight most common... Continue reading

  • Eight Ways to Upgrade Your HVAC System

    During the cold winter months in the U.S., there’s no better way to enhance your home’s comfort than with some effective upgrades. It’s not simply about keeping the house toasty warm as the snow begins to fall—it’s about boosting efficiency and improving the very air you breathe. Learn... Continue reading

  • How to Pick Out a Good HVAC System

    In terms of keeping your home comfortable during every season, nothing is more critical than picking out the right heating, ventilation and air conditioning (HVAC) system. This choice impacts your daily comfort, monthly utility expenditures and general home efficiency. Then again, with so many... Continue reading