Lennox Furnace Error Code 270 Solved in San Antonio

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 tries, the furnace will quit trying to ignite. It will then go into Watchguard mode for about an hour for safety reasons.

When your ignitor stops working, it’s safer to count on our NATE-certified technicians. They’ve gone through rigorous training, so you can rest easy knowing they’ll determine what’s generating the furnace error and will repair it to your standards.

We trust in the quality of our furnace repair in San Antonio 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 house.

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 approximately three to five years before it fractures and has to be subbed out for a new part. It can wear out sooner if you don’t replace your air filter when needed, since a clogged one can cause your furnace to short cycle.

What Happens When a Furnace Ignitor Fails

Your furnace will show 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 bill to mend your furnace rests on the problem 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 technician will also make sure the ignitor is truly lighting the burner and that there are no interferences or cracked hoses within your system.

An ignitor frequently fails when you need it most, bringing about 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 San Antonio Air Service Experts

When you need Expert furnace repair, you can rely on our highly knowledgable technicians at San Antonio Air Service Experts. We’ll fix your furnace and quickly get your heat working again.

Call us at 210-570-9705 or schedule an appointment online today.