Lennox Furnace Error Code 270 Solved in Sharonville

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

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

When your ignitor stops working, it’s safer to depend on our NATE-certified technicians. They’ve gone through rigorous instruction, so you can rest easy knowing they’ll discover what’s causing the furnace error and will fix it to your contentment.

We believe in the quality of our furnace repair in Sharonville 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 heat your house.

Here’s how a furnace ignitor works:

  • Thermostat starts call for heat.
  • Furnace ignitor and blower become energized.
  • 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 changed out. It can wear out sooner if you don’t replace your air filter routinely, since a dirty one can cause your HVAC equipment to short cycle.

What Happens When a Furnace Ignitor Breaks Down

Your furnace will tell you there’s something wrong with a red flash from its indicator light, which it uses to display 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 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 technician 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 always seems to fail when you need it most, prompting an after-hours repair call.

Here’s the average costs to replace it:

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

Turn to the Experts at Knochelmann Service Experts Heating & Air Conditioning

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

Call us at 859-905-0834 or schedule an appointment online today.


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At Service Experts, our top priority is always the health and safety of our customers and team. We are following all COVID-19 (Coronavirus) public safety guidelines and adjusting our business practices as needed to ensure customer and employee wellbeing. As a precautionary measure, anyone working on behalf of Service Experts – including our technicians – is being asked to stay home for the recommended 14 day quarantine period if they are returning from out-of-country, have been exposed to a presumptive or confirmed case, or are feeling unwell. We are providing our technicians and other field employees with additional health and safety guidance to assist in keeping our customers and employees safe. Please be prepared to answer brief health and safety questions with our representative. We will continue to monitor the situation and will adjust our business practices as required. We recognize that this may be a particularly stressful time and want you to know that, we are committed to serving you and making your experience as easy as possible.